Home / 124,982.76-187,415.82-72,407.28

Finding the Fourth Proportional to 124,982.76, 187,415.82 and 72,407.28

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Solution

The fourth proportional to 124,982.76, 187,415.82 and 72,407.28 is: 108,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,982.76 : 187,415.82 = 72,407.28 : x
  2. Step 2: Convert to fraction form
    124,982.76/187,415.82 = 72,407.28/x
  3. Step 3: Cross multiply
    124,982.76x = 187,415.82 × 72,407.28
  4. Step 4: Simplify right side
    124,982.76x = 13,570,269,755.17
  5. Step 5: Solve for x
    x = 13,570,269,755.17/124,982.76
  6. Step 6: Final answer
    x = 108,577.13

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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.