Home / 153,116.61-229,183.52-81,861.18

Finding the Fourth Proportional to 153,116.61, 229,183.52 and 81,861.18

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Solution

The fourth proportional to 153,116.61, 229,183.52 and 81,861.18 is: 122,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,116.61 : 229,183.52 = 81,861.18 : x
  2. Step 2: Convert to fraction form
    153,116.61/229,183.52 = 81,861.18/x
  3. Step 3: Cross multiply
    153,116.61x = 229,183.52 × 81,861.18
  4. Step 4: Simplify right side
    153,116.61x = 18,761,232,974.45
  5. Step 5: Solve for x
    x = 18,761,232,974.45/153,116.61
  6. Step 6: Final answer
    x = 122,529.05

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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.