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Finding the Fourth Proportional to 99,657.95, 137,529.04 and 54,335.56

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Solution

The fourth proportional to 99,657.95, 137,529.04 and 54,335.56 is: 74,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657.95 : 137,529.04 = 54,335.56 : x
  2. Step 2: Convert to fraction form
    99,657.95/137,529.04 = 54,335.56/x
  3. Step 3: Cross multiply
    99,657.95x = 137,529.04 × 54,335.56
  4. Step 4: Simplify right side
    99,657.95x = 7,472,717,284.75
  5. Step 5: Solve for x
    x = 7,472,717,284.75/99,657.95
  6. Step 6: Final answer
    x = 74,983.66

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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.