Home / 186,278.04-279,248.58-67,921.70

Finding the Fourth Proportional to 186,278.04, 279,248.58 and 67,921.70

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Solution

The fourth proportional to 186,278.04, 279,248.58 and 67,921.70 is: 101,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,278.04 : 279,248.58 = 67,921.70 : x
  2. Step 2: Convert to fraction form
    186,278.04/279,248.58 = 67,921.70/x
  3. Step 3: Cross multiply
    186,278.04x = 279,248.58 × 67,921.70
  4. Step 4: Simplify right side
    186,278.04x = 18,967,036,879.94
  5. Step 5: Solve for x
    x = 18,967,036,879.94/186,278.04
  6. Step 6: Final answer
    x = 101,821.11

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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.