Home / 99,810.30-137,752.08-57,367.92

Finding the Fourth Proportional to 99,810.30, 137,752.08 and 57,367.92

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Solution

The fourth proportional to 99,810.30, 137,752.08 and 57,367.92 is: 79,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,810.30 : 137,752.08 = 57,367.92 : x
  2. Step 2: Convert to fraction form
    99,810.30/137,752.08 = 57,367.92/x
  3. Step 3: Cross multiply
    99,810.30x = 137,752.08 × 57,367.92
  4. Step 4: Simplify right side
    99,810.30x = 7,902,550,305.27
  5. Step 5: Solve for x
    x = 7,902,550,305.27/99,810.30
  6. Step 6: Final answer
    x = 79,175.70

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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.