Home / 123,588.29-170,553.18-72,603.17

Finding the Fourth Proportional to 123,588.29, 170,553.18 and 72,603.17

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Solution

The fourth proportional to 123,588.29, 170,553.18 and 72,603.17 is: 100,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,588.29 : 170,553.18 = 72,603.17 : x
  2. Step 2: Convert to fraction form
    123,588.29/170,553.18 = 72,603.17/x
  3. Step 3: Cross multiply
    123,588.29x = 170,553.18 × 72,603.17
  4. Step 4: Simplify right side
    123,588.29x = 12,382,700,692.58
  5. Step 5: Solve for x
    x = 12,382,700,692.58/123,588.29
  6. Step 6: Final answer
    x = 100,193.16

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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.