Home / 107,974.20-161,702.10-52,505.40

Finding the Fourth Proportional to 107,974.20, 161,702.10 and 52,505.40

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Solution

The fourth proportional to 107,974.20, 161,702.10 and 52,505.40 is: 78,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,974.20 : 161,702.10 = 52,505.40 : x
  2. Step 2: Convert to fraction form
    107,974.20/161,702.10 = 52,505.40/x
  3. Step 3: Cross multiply
    107,974.20x = 161,702.10 × 52,505.40
  4. Step 4: Simplify right side
    107,974.20x = 8,490,233,441.34
  5. Step 5: Solve for x
    x = 8,490,233,441.34/107,974.20
  6. Step 6: Final answer
    x = 78,632.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.