Home / 123,947.60-185,921.40-40,830.80

Finding the Fourth Proportional to 123,947.60, 185,921.40 and 40,830.80

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Solution

The fourth proportional to 123,947.60, 185,921.40 and 40,830.80 is: 61,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.60 : 185,921.40 = 40,830.80 : x
  2. Step 2: Convert to fraction form
    123,947.60/185,921.40 = 40,830.80/x
  3. Step 3: Cross multiply
    123,947.60x = 185,921.40 × 40,830.80
  4. Step 4: Simplify right side
    123,947.60x = 7,591,319,499.12
  5. Step 5: Solve for x
    x = 7,591,319,499.12/123,947.60
  6. Step 6: Final answer
    x = 61,246.20

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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.