Home / 158,512,141.40-237,768,212.10-90,487,693.40

Finding the Fourth Proportional to 158,512,141.40, 237,768,212.10 and 90,487,693.40

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Solution

The fourth proportional to 158,512,141.40, 237,768,212.10 and 90,487,693.40 is: 135,731,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,512,141.40 : 237,768,212.10 = 90,487,693.40 : x
  2. Step 2: Convert to fraction form
    158,512,141.40/237,768,212.10 = 90,487,693.40/x
  3. Step 3: Cross multiply
    158,512,141.40x = 237,768,212.10 × 90,487,693.40
  4. Step 4: Simplify right side
    158,512,141.40x = 21,515,097,076,770,972
  5. Step 5: Solve for x
    x = 21,515,097,076,770,972/158,512,141.40
  6. Step 6: Final answer
    x = 135,731,540.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.