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Finding the Fourth Proportional to 135,758.77, 187,347.92 and 75,330.59

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Solution

The fourth proportional to 135,758.77, 187,347.92 and 75,330.59 is: 103,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,758.77 : 187,347.92 = 75,330.59 : x
  2. Step 2: Convert to fraction form
    135,758.77/187,347.92 = 75,330.59/x
  3. Step 3: Cross multiply
    135,758.77x = 187,347.92 × 75,330.59
  4. Step 4: Simplify right side
    135,758.77x = 14,113,028,035.48
  5. Step 5: Solve for x
    x = 14,113,028,035.48/135,758.77
  6. Step 6: Final answer
    x = 103,956.66

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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.