Home / 156,081.30-215,392.92-88,101.16

Finding the Fourth Proportional to 156,081.30, 215,392.92 and 88,101.16

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Solution

The fourth proportional to 156,081.30, 215,392.92 and 88,101.16 is: 121,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081.30 : 215,392.92 = 88,101.16 : x
  2. Step 2: Convert to fraction form
    156,081.30/215,392.92 = 88,101.16/x
  3. Step 3: Cross multiply
    156,081.30x = 215,392.92 × 88,101.16
  4. Step 4: Simplify right side
    156,081.30x = 18,976,366,107.79
  5. Step 5: Solve for x
    x = 18,976,366,107.79/156,081.30
  6. Step 6: Final answer
    x = 121,580.01

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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.