Home / 127,824.78-176,395.74-74,114.76

Finding the Fourth Proportional to 127,824.78, 176,395.74 and 74,114.76

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Solution

The fourth proportional to 127,824.78, 176,395.74 and 74,114.76 is: 102,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,824.78 : 176,395.74 = 74,114.76 : x
  2. Step 2: Convert to fraction form
    127,824.78/176,395.74 = 74,114.76/x
  3. Step 3: Cross multiply
    127,824.78x = 176,395.74 × 74,114.76
  4. Step 4: Simplify right side
    127,824.78x = 13,073,527,935.12
  5. Step 5: Solve for x
    x = 13,073,527,935.12/127,824.78
  6. Step 6: Final answer
    x = 102,276.94

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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.