Home / 100,550.52-138,776.70-58,133.64

Finding the Fourth Proportional to 100,550.52, 138,776.70 and 58,133.64

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Solution

The fourth proportional to 100,550.52, 138,776.70 and 58,133.64 is: 80,234.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,550.52 : 138,776.70 = 58,133.64 : x
  2. Step 2: Convert to fraction form
    100,550.52/138,776.70 = 58,133.64/x
  3. Step 3: Cross multiply
    100,550.52x = 138,776.70 × 58,133.64
  4. Step 4: Simplify right side
    100,550.52x = 8,067,594,718.19
  5. Step 5: Solve for x
    x = 8,067,594,718.19/100,550.52
  6. Step 6: Final answer
    x = 80,234.24

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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.