Home / 135,820.17-187,411.86-75,391.29

Finding the Fourth Proportional to 135,820.17, 187,411.86 and 75,391.29

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Solution

The fourth proportional to 135,820.17, 187,411.86 and 75,391.29 is: 104,028.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,820.17 : 187,411.86 = 75,391.29 : x
  2. Step 2: Convert to fraction form
    135,820.17/187,411.86 = 75,391.29/x
  3. Step 3: Cross multiply
    135,820.17x = 187,411.86 × 75,391.29
  4. Step 4: Simplify right side
    135,820.17x = 14,129,221,886.70
  5. Step 5: Solve for x
    x = 14,129,221,886.70/135,820.17
  6. Step 6: Final answer
    x = 104,028.89

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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.