Home / 142,000.68-195,951.78-85,443.24

Finding the Fourth Proportional to 142,000.68, 195,951.78 and 85,443.24

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Solution

The fourth proportional to 142,000.68, 195,951.78 and 85,443.24 is: 117,906.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,000.68 : 195,951.78 = 85,443.24 : x
  2. Step 2: Convert to fraction form
    142,000.68/195,951.78 = 85,443.24/x
  3. Step 3: Cross multiply
    142,000.68x = 195,951.78 × 85,443.24
  4. Step 4: Simplify right side
    142,000.68x = 16,742,754,966.97
  5. Step 5: Solve for x
    x = 16,742,754,966.97/142,000.68
  6. Step 6: Final answer
    x = 117,906.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.