Home / 127,851.68-176,458.32-80,146.40

Finding the Fourth Proportional to 127,851.68, 176,458.32 and 80,146.40

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Solution

The fourth proportional to 127,851.68, 176,458.32 and 80,146.40 is: 110,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,851.68 : 176,458.32 = 80,146.40 : x
  2. Step 2: Convert to fraction form
    127,851.68/176,458.32 = 80,146.40/x
  3. Step 3: Cross multiply
    127,851.68x = 176,458.32 × 80,146.40
  4. Step 4: Simplify right side
    127,851.68x = 14,142,499,098.05
  5. Step 5: Solve for x
    x = 14,142,499,098.05/127,851.68
  6. Step 6: Final answer
    x = 110,616.45

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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.