Home / 123,654.18-170,646.65-69,938.16

Finding the Fourth Proportional to 123,654.18, 170,646.65 and 69,938.16

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Solution

The fourth proportional to 123,654.18, 170,646.65 and 69,938.16 is: 96,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,654.18 : 170,646.65 = 69,938.16 : x
  2. Step 2: Convert to fraction form
    123,654.18/170,646.65 = 69,938.16/x
  3. Step 3: Cross multiply
    123,654.18x = 170,646.65 × 69,938.16
  4. Step 4: Simplify right side
    123,654.18x = 11,934,712,711.16
  5. Step 5: Solve for x
    x = 11,934,712,711.16/123,654.18
  6. Step 6: Final answer
    x = 96,516.86

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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.