Home / 186,012.12-278,995.86-67,607.88

Finding the Fourth Proportional to 186,012.12, 278,995.86 and 67,607.88

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Solution

The fourth proportional to 186,012.12, 278,995.86 and 67,607.88 is: 101,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,012.12 : 278,995.86 = 67,607.88 : x
  2. Step 2: Convert to fraction form
    186,012.12/278,995.86 = 67,607.88/x
  3. Step 3: Cross multiply
    186,012.12x = 278,995.86 × 67,607.88
  4. Step 4: Simplify right side
    186,012.12x = 18,862,318,623.38
  5. Step 5: Solve for x
    x = 18,862,318,623.38/186,012.12
  6. Step 6: Final answer
    x = 101,403.71

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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.