Home / 124,988.26-187,424.06-72,412.78

Finding the Fourth Proportional to 124,988.26, 187,424.06 and 72,412.78

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Solution

The fourth proportional to 124,988.26, 187,424.06 and 72,412.78 is: 108,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,988.26 : 187,424.06 = 72,412.78 : x
  2. Step 2: Convert to fraction form
    124,988.26/187,424.06 = 72,412.78/x
  3. Step 3: Cross multiply
    124,988.26x = 187,424.06 × 72,412.78
  4. Step 4: Simplify right side
    124,988.26x = 13,571,897,223.49
  5. Step 5: Solve for x
    x = 13,571,897,223.49/124,988.26
  6. Step 6: Final answer
    x = 108,585.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.