Home / 135,721.34-187,295.92-75,293.18

Finding the Fourth Proportional to 135,721.34, 187,295.92 and 75,293.18

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Solution

The fourth proportional to 135,721.34, 187,295.92 and 75,293.18 is: 103,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,721.34 : 187,295.92 = 75,293.18 : x
  2. Step 2: Convert to fraction form
    135,721.34/187,295.92 = 75,293.18/x
  3. Step 3: Cross multiply
    135,721.34x = 187,295.92 × 75,293.18
  4. Step 4: Simplify right side
    135,721.34x = 14,102,105,417.83
  5. Step 5: Solve for x
    x = 14,102,105,417.83/135,721.34
  6. Step 6: Final answer
    x = 103,904.85

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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.