Home / 153,380.90-230,109.51-121,909.70

Finding the Fourth Proportional to 153,380.90, 230,109.51 and 121,909.70

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Solution

The fourth proportional to 153,380.90, 230,109.51 and 121,909.70 is: 182,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,380.90 : 230,109.51 = 121,909.70 : x
  2. Step 2: Convert to fraction form
    153,380.90/230,109.51 = 121,909.70/x
  3. Step 3: Cross multiply
    153,380.90x = 230,109.51 × 121,909.70
  4. Step 4: Simplify right side
    153,380.90x = 28,052,581,331.25
  5. Step 5: Solve for x
    x = 28,052,581,331.25/153,380.90
  6. Step 6: Final answer
    x = 182,894.88

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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.