Home / 105,491.20-158,180.04-42,279.60

Finding the Fourth Proportional to 105,491.20, 158,180.04 and 42,279.60

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Solution

The fourth proportional to 105,491.20, 158,180.04 and 42,279.60 is: 63,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,491.20 : 158,180.04 = 42,279.60 : x
  2. Step 2: Convert to fraction form
    105,491.20/158,180.04 = 42,279.60/x
  3. Step 3: Cross multiply
    105,491.20x = 158,180.04 × 42,279.60
  4. Step 4: Simplify right side
    105,491.20x = 6,687,788,819.18
  5. Step 5: Solve for x
    x = 6,687,788,819.18/105,491.20
  6. Step 6: Final answer
    x = 63,396.65

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1.5x scale

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.