Home / 186,320.90-279,456.15-74,083.70

Finding the Fourth Proportional to 186,320.90, 279,456.15 and 74,083.70

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Solution

The fourth proportional to 186,320.90, 279,456.15 and 74,083.70 is: 111,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,320.90 : 279,456.15 = 74,083.70 : x
  2. Step 2: Convert to fraction form
    186,320.90/279,456.15 = 74,083.70/x
  3. Step 3: Cross multiply
    186,320.90x = 279,456.15 × 74,083.70
  4. Step 4: Simplify right side
    186,320.90x = 20,703,145,579.76
  5. Step 5: Solve for x
    x = 20,703,145,579.76/186,320.90
  6. Step 6: Final answer
    x = 111,115.53

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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.