Home / 127,354.48-175,752.79-76,375.51

Finding the Fourth Proportional to 127,354.48, 175,752.79 and 76,375.51

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Solution

The fourth proportional to 127,354.48, 175,752.79 and 76,375.51 is: 105,400.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,354.48 : 175,752.79 = 76,375.51 : x
  2. Step 2: Convert to fraction form
    127,354.48/175,752.79 = 76,375.51/x
  3. Step 3: Cross multiply
    127,354.48x = 175,752.79 × 76,375.51
  4. Step 4: Simplify right side
    127,354.48x = 13,423,208,339.85
  5. Step 5: Solve for x
    x = 13,423,208,339.85/127,354.48
  6. Step 6: Final answer
    x = 105,400.36

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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.