Home / 104,521.20-144,183.96-66,213.16

Finding the Fourth Proportional to 104,521.20, 144,183.96 and 66,213.16

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Solution

The fourth proportional to 104,521.20, 144,183.96 and 66,213.16 is: 91,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,521.20 : 144,183.96 = 66,213.16 : x
  2. Step 2: Convert to fraction form
    104,521.20/144,183.96 = 66,213.16/x
  3. Step 3: Cross multiply
    104,521.20x = 144,183.96 × 66,213.16
  4. Step 4: Simplify right side
    104,521.20x = 9,546,875,612.91
  5. Step 5: Solve for x
    x = 9,546,875,612.91/104,521.20
  6. Step 6: Final answer
    x = 91,339.13

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1.5x scale

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.