Home / 127,081.50-175,376.79-82,447.26

Finding the Fourth Proportional to 127,081.50, 175,376.79 and 82,447.26

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Solution

The fourth proportional to 127,081.50, 175,376.79 and 82,447.26 is: 113,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,081.50 : 175,376.79 = 82,447.26 : x
  2. Step 2: Convert to fraction form
    127,081.50/175,376.79 = 82,447.26/x
  3. Step 3: Cross multiply
    127,081.50x = 175,376.79 × 82,447.26
  4. Step 4: Simplify right side
    127,081.50x = 14,459,335,803.10
  5. Step 5: Solve for x
    x = 14,459,335,803.10/127,081.50
  6. Step 6: Final answer
    x = 113,780.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.