Home / 127,375.25-175,787.02-76,387.05

Finding the Fourth Proportional to 127,375.25, 175,787.02 and 76,387.05

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Solution

The fourth proportional to 127,375.25, 175,787.02 and 76,387.05 is: 105,419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.25 : 175,787.02 = 76,387.05 : x
  2. Step 2: Convert to fraction form
    127,375.25/175,787.02 = 76,387.05/x
  3. Step 3: Cross multiply
    127,375.25x = 175,787.02 × 76,387.05
  4. Step 4: Simplify right side
    127,375.25x = 13,427,852,088.99
  5. Step 5: Solve for x
    x = 13,427,852,088.99/127,375.25
  6. Step 6: Final answer
    x = 105,419.64

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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.