Home / 151,319.60-226,979.40-139,947.20

Finding the Fourth Proportional to 151,319.60, 226,979.40 and 139,947.20

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Solution

The fourth proportional to 151,319.60, 226,979.40 and 139,947.20 is: 209,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,319.60 : 226,979.40 = 139,947.20 : x
  2. Step 2: Convert to fraction form
    151,319.60/226,979.40 = 139,947.20/x
  3. Step 3: Cross multiply
    151,319.60x = 226,979.40 × 139,947.20
  4. Step 4: Simplify right side
    151,319.60x = 31,765,131,487.68
  5. Step 5: Solve for x
    x = 31,765,131,487.68/151,319.60
  6. Step 6: Final answer
    x = 209,920.80

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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.