Home / 132,114.30-198,171.45-84,875.10

Finding the Fourth Proportional to 132,114.30, 198,171.45 and 84,875.10

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Solution

The fourth proportional to 132,114.30, 198,171.45 and 84,875.10 is: 127,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,114.30 : 198,171.45 = 84,875.10 : x
  2. Step 2: Convert to fraction form
    132,114.30/198,171.45 = 84,875.10/x
  3. Step 3: Cross multiply
    132,114.30x = 198,171.45 × 84,875.10
  4. Step 4: Simplify right side
    132,114.30x = 16,819,821,635.90
  5. Step 5: Solve for x
    x = 16,819,821,635.90/132,114.30
  6. Step 6: Final answer
    x = 127,312.65

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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.