Home / 134,571.78-185,708.17-74,141.04

Finding the Fourth Proportional to 134,571.78, 185,708.17 and 74,141.04

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Solution

The fourth proportional to 134,571.78, 185,708.17 and 74,141.04 is: 102,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,571.78 : 185,708.17 = 74,141.04 : x
  2. Step 2: Convert to fraction form
    134,571.78/185,708.17 = 74,141.04/x
  3. Step 3: Cross multiply
    134,571.78x = 185,708.17 × 74,141.04
  4. Step 4: Simplify right side
    134,571.78x = 13,768,596,860.30
  5. Step 5: Solve for x
    x = 13,768,596,860.30/134,571.78
  6. Step 6: Final answer
    x = 102,314.15

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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.