Home / 186,854.60-280,479.17-87,111

Finding the Fourth Proportional to 186,854.60, 280,479.17 and 87,111

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Solution

The fourth proportional to 186,854.60, 280,479.17 and 87,111 is: 130,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,854.60 : 280,479.17 = 87,111 : x
  2. Step 2: Convert to fraction form
    186,854.60/280,479.17 = 87,111/x
  3. Step 3: Cross multiply
    186,854.60x = 280,479.17 × 87,111
  4. Step 4: Simplify right side
    186,854.60x = 24,432,821,195.65
  5. Step 5: Solve for x
    x = 24,432,821,195.65/186,854.60
  6. Step 6: Final answer
    x = 130,758.47

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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.