Home / 112,032.90-168,049.35-80,540.10

Finding the Fourth Proportional to 112,032.90, 168,049.35 and 80,540.10

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Solution

The fourth proportional to 112,032.90, 168,049.35 and 80,540.10 is: 120,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,032.90 : 168,049.35 = 80,540.10 : x
  2. Step 2: Convert to fraction form
    112,032.90/168,049.35 = 80,540.10/x
  3. Step 3: Cross multiply
    112,032.90x = 168,049.35 × 80,540.10
  4. Step 4: Simplify right side
    112,032.90x = 13,534,711,453.94
  5. Step 5: Solve for x
    x = 13,534,711,453.94/112,032.90
  6. Step 6: Final answer
    x = 120,810.15

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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.