Home / 113,314.60-169,626.30-66,428.20

Finding the Fourth Proportional to 113,314.60, 169,626.30 and 66,428.20

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Solution

The fourth proportional to 113,314.60, 169,626.30 and 66,428.20 is: 99,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,314.60 : 169,626.30 = 66,428.20 : x
  2. Step 2: Convert to fraction form
    113,314.60/169,626.30 = 66,428.20/x
  3. Step 3: Cross multiply
    113,314.60x = 169,626.30 × 66,428.20
  4. Step 4: Simplify right side
    113,314.60x = 11,267,969,781.66
  5. Step 5: Solve for x
    x = 11,267,969,781.66/113,314.60
  6. Step 6: Final answer
    x = 99,439.70

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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.