Home / 157,647.30-217,549.17-86,028.18

Finding the Fourth Proportional to 157,647.30, 217,549.17 and 86,028.18

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Solution

The fourth proportional to 157,647.30, 217,549.17 and 86,028.18 is: 118,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,647.30 : 217,549.17 = 86,028.18 : x
  2. Step 2: Convert to fraction form
    157,647.30/217,549.17 = 86,028.18/x
  3. Step 3: Cross multiply
    157,647.30x = 217,549.17 × 86,028.18
  4. Step 4: Simplify right side
    157,647.30x = 18,715,359,155.61
  5. Step 5: Solve for x
    x = 18,715,359,155.61/157,647.30
  6. Step 6: Final answer
    x = 118,716.65

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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.