Home / 168,772.30-253,085.55-84,499.90

Finding the Fourth Proportional to 168,772.30, 253,085.55 and 84,499.90

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Solution

The fourth proportional to 168,772.30, 253,085.55 and 84,499.90 is: 126,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,772.30 : 253,085.55 = 84,499.90 : x
  2. Step 2: Convert to fraction form
    168,772.30/253,085.55 = 84,499.90/x
  3. Step 3: Cross multiply
    168,772.30x = 253,085.55 × 84,499.90
  4. Step 4: Simplify right side
    168,772.30x = 21,385,703,666.45
  5. Step 5: Solve for x
    x = 21,385,703,666.45/168,772.30
  6. Step 6: Final answer
    x = 126,713.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.