Home / 99,641.05-137,503.50-54,318.03

Finding the Fourth Proportional to 99,641.05, 137,503.50 and 54,318.03

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Solution

The fourth proportional to 99,641.05, 137,503.50 and 54,318.03 is: 74,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,641.05 : 137,503.50 = 54,318.03 : x
  2. Step 2: Convert to fraction form
    99,641.05/137,503.50 = 54,318.03/x
  3. Step 3: Cross multiply
    99,641.05x = 137,503.50 × 54,318.03
  4. Step 4: Simplify right side
    99,641.05x = 7,468,919,238.11
  5. Step 5: Solve for x
    x = 7,468,919,238.11/99,641.05
  6. Step 6: Final answer
    x = 74,958.26

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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.