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Finding the Fourth Proportional to 143,161.58, 214,580.36 and 72,892.46

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Solution

The fourth proportional to 143,161.58, 214,580.36 and 72,892.46 is: 109,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,161.58 : 214,580.36 = 72,892.46 : x
  2. Step 2: Convert to fraction form
    143,161.58/214,580.36 = 72,892.46/x
  3. Step 3: Cross multiply
    143,161.58x = 214,580.36 × 72,892.46
  4. Step 4: Simplify right side
    143,161.58x = 15,641,290,308.09
  5. Step 5: Solve for x
    x = 15,641,290,308.09/143,161.58
  6. Step 6: Final answer
    x = 109,256.20

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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.