Home / 153,138.80-229,392.14-89,766.50

Finding the Fourth Proportional to 153,138.80, 229,392.14 and 89,766.50

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Solution

The fourth proportional to 153,138.80, 229,392.14 and 89,766.50 is: 134,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,138.80 : 229,392.14 = 89,766.50 : x
  2. Step 2: Convert to fraction form
    153,138.80/229,392.14 = 89,766.50/x
  3. Step 3: Cross multiply
    153,138.80x = 229,392.14 × 89,766.50
  4. Step 4: Simplify right side
    153,138.80x = 20,591,727,939.52
  5. Step 5: Solve for x
    x = 20,591,727,939.52/153,138.80
  6. Step 6: Final answer
    x = 134,464.47

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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.