Home / 135,587.85-187,091.57-75,158.48

Finding the Fourth Proportional to 135,587.85, 187,091.57 and 75,158.48

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Solution

The fourth proportional to 135,587.85, 187,091.57 and 75,158.48 is: 103,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,587.85 : 187,091.57 = 75,158.48 : x
  2. Step 2: Convert to fraction form
    135,587.85/187,091.57 = 75,158.48/x
  3. Step 3: Cross multiply
    135,587.85x = 187,091.57 × 75,158.48
  4. Step 4: Simplify right side
    135,587.85x = 14,061,516,710.76
  5. Step 5: Solve for x
    x = 14,061,516,710.76/135,587.85
  6. Step 6: Final answer
    x = 103,707.79

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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.