Home / 127,076.48-175,477-79,411.28

Finding the Fourth Proportional to 127,076.48, 175,477 and 79,411.28

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Solution

The fourth proportional to 127,076.48, 175,477 and 79,411.28 is: 109,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,076.48 : 175,477 = 79,411.28 : x
  2. Step 2: Convert to fraction form
    127,076.48/175,477 = 79,411.28/x
  3. Step 3: Cross multiply
    127,076.48x = 175,477 × 79,411.28
  4. Step 4: Simplify right side
    127,076.48x = 13,934,853,180.56
  5. Step 5: Solve for x
    x = 13,934,853,180.56/127,076.48
  6. Step 6: Final answer
    x = 109,657.22

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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.