Home / 99,784.46-137,726.16-57,367.64

Finding the Fourth Proportional to 99,784.46, 137,726.16 and 57,367.64

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Solution

The fourth proportional to 99,784.46, 137,726.16 and 57,367.64 is: 79,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,784.46 : 137,726.16 = 57,367.64 : x
  2. Step 2: Convert to fraction form
    99,784.46/137,726.16 = 57,367.64/x
  3. Step 3: Cross multiply
    99,784.46x = 137,726.16 × 57,367.64
  4. Step 4: Simplify right side
    99,784.46x = 7,901,024,765.46
  5. Step 5: Solve for x
    x = 7,901,024,765.46/99,784.46
  6. Step 6: Final answer
    x = 79,180.91

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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.