Home / 127,807.20-176,370.48-71,215.20

Finding the Fourth Proportional to 127,807.20, 176,370.48 and 71,215.20

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Solution

The fourth proportional to 127,807.20, 176,370.48 and 71,215.20 is: 98,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,807.20 : 176,370.48 = 71,215.20 : x
  2. Step 2: Convert to fraction form
    127,807.20/176,370.48 = 71,215.20/x
  3. Step 3: Cross multiply
    127,807.20x = 176,370.48 × 71,215.20
  4. Step 4: Simplify right side
    127,807.20x = 12,560,259,007.30
  5. Step 5: Solve for x
    x = 12,560,259,007.30/127,807.20
  6. Step 6: Final answer
    x = 98,275.05

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1.5x scale

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.