Home / 135,610.27-187,148.34-77,472.14

Finding the Fourth Proportional to 135,610.27, 187,148.34 and 77,472.14

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Solution

The fourth proportional to 135,610.27, 187,148.34 and 77,472.14 is: 106,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,610.27 : 187,148.34 = 77,472.14 : x
  2. Step 2: Convert to fraction form
    135,610.27/187,148.34 = 77,472.14/x
  3. Step 3: Cross multiply
    135,610.27x = 187,148.34 × 77,472.14
  4. Step 4: Simplify right side
    135,610.27x = 14,498,781,461.51
  5. Step 5: Solve for x
    x = 14,498,781,461.51/135,610.27
  6. Step 6: Final answer
    x = 106,915.07

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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.