Home / 146,531.20-220,282.80-127,285.60

Finding the Fourth Proportional to 146,531.20, 220,282.80 and 127,285.60

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Solution

The fourth proportional to 146,531.20, 220,282.80 and 127,285.60 is: 191,350.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,531.20 : 220,282.80 = 127,285.60 : x
  2. Step 2: Convert to fraction form
    146,531.20/220,282.80 = 127,285.60/x
  3. Step 3: Cross multiply
    146,531.20x = 220,282.80 × 127,285.60
  4. Step 4: Simplify right side
    146,531.20x = 28,038,828,367.68
  5. Step 5: Solve for x
    x = 28,038,828,367.68/146,531.20
  6. Step 6: Final answer
    x = 191,350.57

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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.