Home / 146,139.60-219,439.80-83,931.60

Finding the Fourth Proportional to 146,139.60, 219,439.80 and 83,931.60

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Solution

The fourth proportional to 146,139.60, 219,439.80 and 83,931.60 is: 126,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,139.60 : 219,439.80 = 83,931.60 : x
  2. Step 2: Convert to fraction form
    146,139.60/219,439.80 = 83,931.60/x
  3. Step 3: Cross multiply
    146,139.60x = 219,439.80 × 83,931.60
  4. Step 4: Simplify right side
    146,139.60x = 18,417,933,517.68
  5. Step 5: Solve for x
    x = 18,417,933,517.68/146,139.60
  6. Step 6: Final answer
    x = 126,029.72

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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.