Home / 132,718.40-198,501.60-118,779.20

Finding the Fourth Proportional to 132,718.40, 198,501.60 and 118,779.20

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Solution

The fourth proportional to 132,718.40, 198,501.60 and 118,779.20 is: 177,653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,718.40 : 198,501.60 = 118,779.20 : x
  2. Step 2: Convert to fraction form
    132,718.40/198,501.60 = 118,779.20/x
  3. Step 3: Cross multiply
    132,718.40x = 198,501.60 × 118,779.20
  4. Step 4: Simplify right side
    132,718.40x = 23,577,861,246.72
  5. Step 5: Solve for x
    x = 23,577,861,246.72/132,718.40
  6. Step 6: Final answer
    x = 177,653.30

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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.