Home / 102,378.26-153,380.28-74,228.60

Finding the Fourth Proportional to 102,378.26, 153,380.28 and 74,228.60

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Solution

The fourth proportional to 102,378.26, 153,380.28 and 74,228.60 is: 111,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,378.26 : 153,380.28 = 74,228.60 : x
  2. Step 2: Convert to fraction form
    102,378.26/153,380.28 = 74,228.60/x
  3. Step 3: Cross multiply
    102,378.26x = 153,380.28 × 74,228.60
  4. Step 4: Simplify right side
    102,378.26x = 11,385,204,113.82
  5. Step 5: Solve for x
    x = 11,385,204,113.82/102,378.26
  6. Step 6: Final answer
    x = 111,207.24

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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.