Home / 132,113.75-198,086.33-87,083.12

Finding the Fourth Proportional to 132,113.75, 198,086.33 and 87,083.12

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Solution

The fourth proportional to 132,113.75, 198,086.33 and 87,083.12 is: 130,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,113.75 : 198,086.33 = 87,083.12 : x
  2. Step 2: Convert to fraction form
    132,113.75/198,086.33 = 87,083.12/x
  3. Step 3: Cross multiply
    132,113.75x = 198,086.33 × 87,083.12
  4. Step 4: Simplify right side
    132,113.75x = 17,249,974,219.90
  5. Step 5: Solve for x
    x = 17,249,974,219.90/132,113.75
  6. Step 6: Final answer
    x = 130,569.11

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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.