Home / 117,533.20-162,155.28-75,116.56

Finding the Fourth Proportional to 117,533.20, 162,155.28 and 75,116.56

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Solution

The fourth proportional to 117,533.20, 162,155.28 and 75,116.56 is: 103,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,533.20 : 162,155.28 = 75,116.56 : x
  2. Step 2: Convert to fraction form
    117,533.20/162,155.28 = 75,116.56/x
  3. Step 3: Cross multiply
    117,533.20x = 162,155.28 × 75,116.56
  4. Step 4: Simplify right side
    117,533.20x = 12,180,546,819.44
  5. Step 5: Solve for x
    x = 12,180,546,819.44/117,533.20
  6. Step 6: Final answer
    x = 103,634.95

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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.