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Finding the Fourth Proportional to 186,077.76, 279,116.76 and 80,839.32

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Solution

The fourth proportional to 186,077.76, 279,116.76 and 80,839.32 is: 121,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,077.76 : 279,116.76 = 80,839.32 : x
  2. Step 2: Convert to fraction form
    186,077.76/279,116.76 = 80,839.32/x
  3. Step 3: Cross multiply
    186,077.76x = 279,116.76 × 80,839.32
  4. Step 4: Simplify right side
    186,077.76x = 22,563,609,079.00
  5. Step 5: Solve for x
    x = 22,563,609,079.00/186,077.76
  6. Step 6: Final answer
    x = 121,259.03

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1.5x scale

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.