Home / 186,965.10-280,265.40-106,920.90

Finding the Fourth Proportional to 186,965.10, 280,265.40 and 106,920.90

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Solution

The fourth proportional to 186,965.10, 280,265.40 and 106,920.90 is: 160,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,965.10 : 280,265.40 = 106,920.90 : x
  2. Step 2: Convert to fraction form
    186,965.10/280,265.40 = 106,920.90/x
  3. Step 3: Cross multiply
    186,965.10x = 280,265.40 × 106,920.90
  4. Step 4: Simplify right side
    186,965.10x = 29,966,228,806.86
  5. Step 5: Solve for x
    x = 29,966,228,806.86/186,965.10
  6. Step 6: Final answer
    x = 160,277.13

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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.