Home / 186,977.16-280,353.96-87,159.65

Finding the Fourth Proportional to 186,977.16, 280,353.96 and 87,159.65

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Solution

The fourth proportional to 186,977.16, 280,353.96 and 87,159.65 is: 130,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,977.16 : 280,353.96 = 87,159.65 : x
  2. Step 2: Convert to fraction form
    186,977.16/280,353.96 = 87,159.65/x
  3. Step 3: Cross multiply
    186,977.16x = 280,353.96 × 87,159.65
  4. Step 4: Simplify right side
    186,977.16x = 24,435,551,627.94
  5. Step 5: Solve for x
    x = 24,435,551,627.94/186,977.16
  6. Step 6: Final answer
    x = 130,687.36

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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.