Home / 132,870.40-199,305.60-125,612.80

Finding the Fourth Proportional to 132,870.40, 199,305.60 and 125,612.80

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Solution

The fourth proportional to 132,870.40, 199,305.60 and 125,612.80 is: 188,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,870.40 : 199,305.60 = 125,612.80 : x
  2. Step 2: Convert to fraction form
    132,870.40/199,305.60 = 125,612.80/x
  3. Step 3: Cross multiply
    132,870.40x = 199,305.60 × 125,612.80
  4. Step 4: Simplify right side
    132,870.40x = 25,035,334,471.68
  5. Step 5: Solve for x
    x = 25,035,334,471.68/132,870.40
  6. Step 6: Final answer
    x = 188,419.20

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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.