Home / 127,731.54-176,274.98-71,142.92

Finding the Fourth Proportional to 127,731.54, 176,274.98 and 71,142.92

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Solution

The fourth proportional to 127,731.54, 176,274.98 and 71,142.92 is: 98,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,731.54 : 176,274.98 = 71,142.92 : x
  2. Step 2: Convert to fraction form
    127,731.54/176,274.98 = 71,142.92/x
  3. Step 3: Cross multiply
    127,731.54x = 176,274.98 × 71,142.92
  4. Step 4: Simplify right side
    127,731.54x = 12,540,716,800.14
  5. Step 5: Solve for x
    x = 12,540,716,800.14/127,731.54
  6. Step 6: Final answer
    x = 98,180.27

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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.