Home / 123,381.38-170,264.98-69,663.19

Finding the Fourth Proportional to 123,381.38, 170,264.98 and 69,663.19

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Solution

The fourth proportional to 123,381.38, 170,264.98 and 69,663.19 is: 96,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,381.38 : 170,264.98 = 69,663.19 : x
  2. Step 2: Convert to fraction form
    123,381.38/170,264.98 = 69,663.19/x
  3. Step 3: Cross multiply
    123,381.38x = 170,264.98 × 69,663.19
  4. Step 4: Simplify right side
    123,381.38x = 11,861,201,652.09
  5. Step 5: Solve for x
    x = 11,861,201,652.09/123,381.38
  6. Step 6: Final answer
    x = 96,134.45

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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.