Home / 135,528.57-187,023.92-75,101.76

Finding the Fourth Proportional to 135,528.57, 187,023.92 and 75,101.76

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Solution

The fourth proportional to 135,528.57, 187,023.92 and 75,101.76 is: 103,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,528.57 : 187,023.92 = 75,101.76 : x
  2. Step 2: Convert to fraction form
    135,528.57/187,023.92 = 75,101.76/x
  3. Step 3: Cross multiply
    135,528.57x = 187,023.92 × 75,101.76
  4. Step 4: Simplify right side
    135,528.57x = 14,045,825,178.59
  5. Step 5: Solve for x
    x = 14,045,825,178.59/135,528.57
  6. Step 6: Final answer
    x = 103,637.37

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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.