Home / 127,305.60-191,020.32-51,401.04

Finding the Fourth Proportional to 127,305.60, 191,020.32 and 51,401.04

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Solution

The fourth proportional to 127,305.60, 191,020.32 and 51,401.04 is: 77,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.60 : 191,020.32 = 51,401.04 : x
  2. Step 2: Convert to fraction form
    127,305.60/191,020.32 = 51,401.04/x
  3. Step 3: Cross multiply
    127,305.60x = 191,020.32 × 51,401.04
  4. Step 4: Simplify right side
    127,305.60x = 9,818,643,109.13
  5. Step 5: Solve for x
    x = 9,818,643,109.13/127,305.60
  6. Step 6: Final answer
    x = 77,126.56

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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.