Home / 157,499.24-217,347.10-85,879.85

Finding the Fourth Proportional to 157,499.24, 217,347.10 and 85,879.85

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Solution

The fourth proportional to 157,499.24, 217,347.10 and 85,879.85 is: 118,513.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,499.24 : 217,347.10 = 85,879.85 : x
  2. Step 2: Convert to fraction form
    157,499.24/217,347.10 = 85,879.85/x
  3. Step 3: Cross multiply
    157,499.24x = 217,347.10 × 85,879.85
  4. Step 4: Simplify right side
    157,499.24x = 18,665,735,044.50
  5. Step 5: Solve for x
    x = 18,665,735,044.50/157,499.24
  6. Step 6: Final answer
    x = 118,513.18

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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.