Home / 157,081.57-216,777.17-85,466.20

Finding the Fourth Proportional to 157,081.57, 216,777.17 and 85,466.20

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Solution

The fourth proportional to 157,081.57, 216,777.17 and 85,466.20 is: 117,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,081.57 : 216,777.17 = 85,466.20 : x
  2. Step 2: Convert to fraction form
    157,081.57/216,777.17 = 85,466.20/x
  3. Step 3: Cross multiply
    157,081.57x = 216,777.17 × 85,466.20
  4. Step 4: Simplify right side
    157,081.57x = 18,527,120,966.65
  5. Step 5: Solve for x
    x = 18,527,120,966.65/157,081.57
  6. Step 6: Final answer
    x = 117,945.86

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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.