Home / 127,730.80-176,273.94-71,142.18

Finding the Fourth Proportional to 127,730.80, 176,273.94 and 71,142.18

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Solution

The fourth proportional to 127,730.80, 176,273.94 and 71,142.18 is: 98,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,730.80 : 176,273.94 = 71,142.18 : x
  2. Step 2: Convert to fraction form
    127,730.80/176,273.94 = 71,142.18/x
  3. Step 3: Cross multiply
    127,730.80x = 176,273.94 × 71,142.18
  4. Step 4: Simplify right side
    127,730.80x = 12,540,512,368.79
  5. Step 5: Solve for x
    x = 12,540,512,368.79/127,730.80
  6. Step 6: Final answer
    x = 98,179.24

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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.