Home / 115,590.20-173,385.30-74,118.20

Finding the Fourth Proportional to 115,590.20, 173,385.30 and 74,118.20

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Solution

The fourth proportional to 115,590.20, 173,385.30 and 74,118.20 is: 111,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,590.20 : 173,385.30 = 74,118.20 : x
  2. Step 2: Convert to fraction form
    115,590.20/173,385.30 = 74,118.20/x
  3. Step 3: Cross multiply
    115,590.20x = 173,385.30 × 74,118.20
  4. Step 4: Simplify right side
    115,590.20x = 12,851,006,342.46
  5. Step 5: Solve for x
    x = 12,851,006,342.46/115,590.20
  6. Step 6: Final answer
    x = 111,177.30

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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.