Home / 127,320.44-175,636.30-86,486.66

Finding the Fourth Proportional to 127,320.44, 175,636.30 and 86,486.66

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Solution

The fourth proportional to 127,320.44, 175,636.30 and 86,486.66 is: 119,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,320.44 : 175,636.30 = 86,486.66 : x
  2. Step 2: Convert to fraction form
    127,320.44/175,636.30 = 86,486.66/x
  3. Step 3: Cross multiply
    127,320.44x = 175,636.30 × 86,486.66
  4. Step 4: Simplify right side
    127,320.44x = 15,190,196,961.76
  5. Step 5: Solve for x
    x = 15,190,196,961.76/127,320.44
  6. Step 6: Final answer
    x = 119,306.82

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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.