Home / 186,211.73-279,098.88-86,160.60

Finding the Fourth Proportional to 186,211.73, 279,098.88 and 86,160.60

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Solution

The fourth proportional to 186,211.73, 279,098.88 and 86,160.60 is: 129,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,211.73 : 279,098.88 = 86,160.60 : x
  2. Step 2: Convert to fraction form
    186,211.73/279,098.88 = 86,160.60/x
  3. Step 3: Cross multiply
    186,211.73x = 279,098.88 × 86,160.60
  4. Step 4: Simplify right side
    186,211.73x = 24,047,326,960.13
  5. Step 5: Solve for x
    x = 24,047,326,960.13/186,211.73
  6. Step 6: Final answer
    x = 129,139.70

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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.