Home / 153,380.40-230,108.76-121,909.20

Finding the Fourth Proportional to 153,380.40, 230,108.76 and 121,909.20

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Solution

The fourth proportional to 153,380.40, 230,108.76 and 121,909.20 is: 182,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,380.40 : 230,108.76 = 121,909.20 : x
  2. Step 2: Convert to fraction form
    153,380.40/230,108.76 = 121,909.20/x
  3. Step 3: Cross multiply
    153,380.40x = 230,108.76 × 121,909.20
  4. Step 4: Simplify right side
    153,380.40x = 28,052,374,844.59
  5. Step 5: Solve for x
    x = 28,052,374,844.59/153,380.40
  6. Step 6: Final answer
    x = 182,894.13

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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.