Home / 132,323.60-198,485.40-121,437.20

Finding the Fourth Proportional to 132,323.60, 198,485.40 and 121,437.20

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Solution

The fourth proportional to 132,323.60, 198,485.40 and 121,437.20 is: 182,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,323.60 : 198,485.40 = 121,437.20 : x
  2. Step 2: Convert to fraction form
    132,323.60/198,485.40 = 121,437.20/x
  3. Step 3: Cross multiply
    132,323.60x = 198,485.40 × 121,437.20
  4. Step 4: Simplify right side
    132,323.60x = 24,103,511,216.88
  5. Step 5: Solve for x
    x = 24,103,511,216.88/132,323.60
  6. Step 6: Final answer
    x = 182,155.80

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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.