Home / 123,006.40-169,670.10-77,604.28

Finding the Fourth Proportional to 123,006.40, 169,670.10 and 77,604.28

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Solution

The fourth proportional to 123,006.40, 169,670.10 and 77,604.28 is: 107,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,006.40 : 169,670.10 = 77,604.28 : x
  2. Step 2: Convert to fraction form
    123,006.40/169,670.10 = 77,604.28/x
  3. Step 3: Cross multiply
    123,006.40x = 169,670.10 × 77,604.28
  4. Step 4: Simplify right side
    123,006.40x = 13,167,125,948.03
  5. Step 5: Solve for x
    x = 13,167,125,948.03/123,006.40
  6. Step 6: Final answer
    x = 107,044.23

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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.