Home / 186,620.29-279,764.69-72,741.85

Finding the Fourth Proportional to 186,620.29, 279,764.69 and 72,741.85

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Solution

The fourth proportional to 186,620.29, 279,764.69 and 72,741.85 is: 109,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,620.29 : 279,764.69 = 72,741.85 : x
  2. Step 2: Convert to fraction form
    186,620.29/279,764.69 = 72,741.85/x
  3. Step 3: Cross multiply
    186,620.29x = 279,764.69 × 72,741.85
  4. Step 4: Simplify right side
    186,620.29x = 20,350,600,052.16
  5. Step 5: Solve for x
    x = 20,350,600,052.16/186,620.29
  6. Step 6: Final answer
    x = 109,048.17

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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.