Home / 118,388.20-177,582.30-74,151.40

Finding the Fourth Proportional to 118,388.20, 177,582.30 and 74,151.40

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Solution

The fourth proportional to 118,388.20, 177,582.30 and 74,151.40 is: 111,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,388.20 : 177,582.30 = 74,151.40 : x
  2. Step 2: Convert to fraction form
    118,388.20/177,582.30 = 74,151.40/x
  3. Step 3: Cross multiply
    118,388.20x = 177,582.30 × 74,151.40
  4. Step 4: Simplify right side
    118,388.20x = 13,167,976,160.22
  5. Step 5: Solve for x
    x = 13,167,976,160.22/118,388.20
  6. Step 6: Final answer
    x = 111,227.10

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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.