Home / 99,497.85-137,309.49-54,178.32

Finding the Fourth Proportional to 99,497.85, 137,309.49 and 54,178.32

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Solution

The fourth proportional to 99,497.85, 137,309.49 and 54,178.32 is: 74,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,497.85 : 137,309.49 = 54,178.32 : x
  2. Step 2: Convert to fraction form
    99,497.85/137,309.49 = 54,178.32/x
  3. Step 3: Cross multiply
    99,497.85x = 137,309.49 × 54,178.32
  4. Step 4: Simplify right side
    99,497.85x = 7,439,197,488.26
  5. Step 5: Solve for x
    x = 7,439,197,488.26/99,497.85
  6. Step 6: Final answer
    x = 74,767.42

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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.