Home / 117,287.20-175,929.28-28,540.76

Finding the Fourth Proportional to 117,287.20, 175,929.28 and 28,540.76

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Solution

The fourth proportional to 117,287.20, 175,929.28 and 28,540.76 is: 42,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,287.20 : 175,929.28 = 28,540.76 : x
  2. Step 2: Convert to fraction form
    117,287.20/175,929.28 = 28,540.76/x
  3. Step 3: Cross multiply
    117,287.20x = 175,929.28 × 28,540.76
  4. Step 4: Simplify right side
    117,287.20x = 5,021,155,357.45
  5. Step 5: Solve for x
    x = 5,021,155,357.45/117,287.20
  6. Step 6: Final answer
    x = 42,810.77

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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.