Home / 127,930.20-176,587.74-76,971.48

Finding the Fourth Proportional to 127,930.20, 176,587.74 and 76,971.48

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Solution

The fourth proportional to 127,930.20, 176,587.74 and 76,971.48 is: 106,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,930.20 : 176,587.74 = 76,971.48 : x
  2. Step 2: Convert to fraction form
    127,930.20/176,587.74 = 76,971.48/x
  3. Step 3: Cross multiply
    127,930.20x = 176,587.74 × 76,971.48
  4. Step 4: Simplify right side
    127,930.20x = 13,592,219,697.66
  5. Step 5: Solve for x
    x = 13,592,219,697.66/127,930.20
  6. Step 6: Final answer
    x = 106,247.15

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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.