Home / 145,951.20-218,270.70-122,331.60

Finding the Fourth Proportional to 145,951.20, 218,270.70 and 122,331.60

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Solution

The fourth proportional to 145,951.20, 218,270.70 and 122,331.60 is: 182,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,951.20 : 218,270.70 = 122,331.60 : x
  2. Step 2: Convert to fraction form
    145,951.20/218,270.70 = 122,331.60/x
  3. Step 3: Cross multiply
    145,951.20x = 218,270.70 × 122,331.60
  4. Step 4: Simplify right side
    145,951.20x = 26,701,403,964.12
  5. Step 5: Solve for x
    x = 26,701,403,964.12/145,951.20
  6. Step 6: Final answer
    x = 182,947.48

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1.5x scale

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.