Home / 135,799.76-187,400.85-75,366.89

Finding the Fourth Proportional to 135,799.76, 187,400.85 and 75,366.89

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Solution

The fourth proportional to 135,799.76, 187,400.85 and 75,366.89 is: 104,004.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,799.76 : 187,400.85 = 75,366.89 : x
  2. Step 2: Convert to fraction form
    135,799.76/187,400.85 = 75,366.89/x
  3. Step 3: Cross multiply
    135,799.76x = 187,400.85 × 75,366.89
  4. Step 4: Simplify right side
    135,799.76x = 14,123,819,247.86
  5. Step 5: Solve for x
    x = 14,123,819,247.86/135,799.76
  6. Step 6: Final answer
    x = 104,004.74

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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.