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Finding the Fourth Proportional to 135,797.76, 187,398.09 and 75,364.89

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Solution

The fourth proportional to 135,797.76, 187,398.09 and 75,364.89 is: 104,001.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,797.76 : 187,398.09 = 75,364.89 : x
  2. Step 2: Convert to fraction form
    135,797.76/187,398.09 = 75,364.89/x
  3. Step 3: Cross multiply
    135,797.76x = 187,398.09 × 75,364.89
  4. Step 4: Simplify right side
    135,797.76x = 14,123,236,439.06
  5. Step 5: Solve for x
    x = 14,123,236,439.06/135,797.76
  6. Step 6: Final answer
    x = 104,001.98

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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.