Home / 127,875.22-176,353.41-80,133.78

Finding the Fourth Proportional to 127,875.22, 176,353.41 and 80,133.78

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Solution

The fourth proportional to 127,875.22, 176,353.41 and 80,133.78 is: 110,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,875.22 : 176,353.41 = 80,133.78 : x
  2. Step 2: Convert to fraction form
    127,875.22/176,353.41 = 80,133.78/x
  3. Step 3: Cross multiply
    127,875.22x = 176,353.41 × 80,133.78
  4. Step 4: Simplify right side
    127,875.22x = 14,131,865,359.19
  5. Step 5: Solve for x
    x = 14,131,865,359.19/127,875.22
  6. Step 6: Final answer
    x = 110,512.93

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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.