Home / 99,500.54-137,307.51-54,178.16

Finding the Fourth Proportional to 99,500.54, 137,307.51 and 54,178.16

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Solution

The fourth proportional to 99,500.54, 137,307.51 and 54,178.16 is: 74,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,500.54 : 137,307.51 = 54,178.16 : x
  2. Step 2: Convert to fraction form
    99,500.54/137,307.51 = 54,178.16/x
  3. Step 3: Cross multiply
    99,500.54x = 137,307.51 × 54,178.16
  4. Step 4: Simplify right side
    99,500.54x = 7,439,067,559.44
  5. Step 5: Solve for x
    x = 7,439,067,559.44/99,500.54
  6. Step 6: Final answer
    x = 74,764.10

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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.