Home / 186,290.16-279,437.67-81,105.18

Finding the Fourth Proportional to 186,290.16, 279,437.67 and 81,105.18

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Solution

The fourth proportional to 186,290.16, 279,437.67 and 81,105.18 is: 121,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,290.16 : 279,437.67 = 81,105.18 : x
  2. Step 2: Convert to fraction form
    186,290.16/279,437.67 = 81,105.18/x
  3. Step 3: Cross multiply
    186,290.16x = 279,437.67 × 81,105.18
  4. Step 4: Simplify right side
    186,290.16x = 22,663,842,524.13
  5. Step 5: Solve for x
    x = 22,663,842,524.13/186,290.16
  6. Step 6: Final answer
    x = 121,658.83

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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.