Home / 102,520.40-153,780.60-75,948.35

Finding the Fourth Proportional to 102,520.40, 153,780.60 and 75,948.35

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Solution

The fourth proportional to 102,520.40, 153,780.60 and 75,948.35 is: 113,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,520.40 : 153,780.60 = 75,948.35 : x
  2. Step 2: Convert to fraction form
    102,520.40/153,780.60 = 75,948.35/x
  3. Step 3: Cross multiply
    102,520.40x = 153,780.60 × 75,948.35
  4. Step 4: Simplify right side
    102,520.40x = 11,679,382,832.01
  5. Step 5: Solve for x
    x = 11,679,382,832.01/102,520.40
  6. Step 6: Final answer
    x = 113,922.53

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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.