Home / 100,734.40-151,138.80-41,575.20

Finding the Fourth Proportional to 100,734.40, 151,138.80 and 41,575.20

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Solution

The fourth proportional to 100,734.40, 151,138.80 and 41,575.20 is: 62,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,734.40 : 151,138.80 = 41,575.20 : x
  2. Step 2: Convert to fraction form
    100,734.40/151,138.80 = 41,575.20/x
  3. Step 3: Cross multiply
    100,734.40x = 151,138.80 × 41,575.20
  4. Step 4: Simplify right side
    100,734.40x = 6,283,625,837.76
  5. Step 5: Solve for x
    x = 6,283,625,837.76/100,734.40
  6. Step 6: Final answer
    x = 62,378.15

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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.