Home / 127,979.30-191,724.15-68,795.30

Finding the Fourth Proportional to 127,979.30, 191,724.15 and 68,795.30

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Solution

The fourth proportional to 127,979.30, 191,724.15 and 68,795.30 is: 103,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.30 : 191,724.15 = 68,795.30 : x
  2. Step 2: Convert to fraction form
    127,979.30/191,724.15 = 68,795.30/x
  3. Step 3: Cross multiply
    127,979.30x = 191,724.15 × 68,795.30
  4. Step 4: Simplify right side
    127,979.30x = 13,189,720,416.50
  5. Step 5: Solve for x
    x = 13,189,720,416.50/127,979.30
  6. Step 6: Final answer
    x = 103,061.36

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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.