Home / 158,000.60-237,000.90-91,406.45

Finding the Fourth Proportional to 158,000.60, 237,000.90 and 91,406.45

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Solution

The fourth proportional to 158,000.60, 237,000.90 and 91,406.45 is: 137,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,000.60 : 237,000.90 = 91,406.45 : x
  2. Step 2: Convert to fraction form
    158,000.60/237,000.90 = 91,406.45/x
  3. Step 3: Cross multiply
    158,000.60x = 237,000.90 × 91,406.45
  4. Step 4: Simplify right side
    158,000.60x = 21,663,410,915.81
  5. Step 5: Solve for x
    x = 21,663,410,915.81/158,000.60
  6. Step 6: Final answer
    x = 137,109.68

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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.