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Finding the Fourth Proportional to 123,892.96, 170,966.81 and 70,176.90

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Solution

The fourth proportional to 123,892.96, 170,966.81 and 70,176.90 is: 96,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.96 : 170,966.81 = 70,176.90 : x
  2. Step 2: Convert to fraction form
    123,892.96/170,966.81 = 70,176.90/x
  3. Step 3: Cross multiply
    123,892.96x = 170,966.81 × 70,176.90
  4. Step 4: Simplify right side
    123,892.96x = 11,997,920,728.69
  5. Step 5: Solve for x
    x = 11,997,920,728.69/123,892.96
  6. Step 6: Final answer
    x = 96,841.02

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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.