Home / 127,518.30-175,967.79-70,147.80

Finding the Fourth Proportional to 127,518.30, 175,967.79 and 70,147.80

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Solution

The fourth proportional to 127,518.30, 175,967.79 and 70,147.80 is: 96,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,518.30 : 175,967.79 = 70,147.80 : x
  2. Step 2: Convert to fraction form
    127,518.30/175,967.79 = 70,147.80/x
  3. Step 3: Cross multiply
    127,518.30x = 175,967.79 × 70,147.80
  4. Step 4: Simplify right side
    127,518.30x = 12,343,753,339.36
  5. Step 5: Solve for x
    x = 12,343,753,339.36/127,518.30
  6. Step 6: Final answer
    x = 96,799.86

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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.