Home / 123,862.23-170,900.60-72,877.19

Finding the Fourth Proportional to 123,862.23, 170,900.60 and 72,877.19

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Solution

The fourth proportional to 123,862.23, 170,900.60 and 72,877.19 is: 100,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,862.23 : 170,900.60 = 72,877.19 : x
  2. Step 2: Convert to fraction form
    123,862.23/170,900.60 = 72,877.19/x
  3. Step 3: Cross multiply
    123,862.23x = 170,900.60 × 72,877.19
  4. Step 4: Simplify right side
    123,862.23x = 12,454,754,278.43
  5. Step 5: Solve for x
    x = 12,454,754,278.43/123,862.23
  6. Step 6: Final answer
    x = 100,553.29

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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.