Home / 186,103.98-279,130.46-80,909.28

Finding the Fourth Proportional to 186,103.98, 279,130.46 and 80,909.28

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Solution

The fourth proportional to 186,103.98, 279,130.46 and 80,909.28 is: 121,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,103.98 : 279,130.46 = 80,909.28 : x
  2. Step 2: Convert to fraction form
    186,103.98/279,130.46 = 80,909.28/x
  3. Step 3: Cross multiply
    186,103.98x = 279,130.46 × 80,909.28
  4. Step 4: Simplify right side
    186,103.98x = 22,584,244,140.12
  5. Step 5: Solve for x
    x = 22,584,244,140.12/186,103.98
  6. Step 6: Final answer
    x = 121,352.83

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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.