Home / 138,671.19-208,037.97-43,907.04

Finding the Fourth Proportional to 138,671.19, 208,037.97 and 43,907.04

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Solution

The fourth proportional to 138,671.19, 208,037.97 and 43,907.04 is: 65,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,671.19 : 208,037.97 = 43,907.04 : x
  2. Step 2: Convert to fraction form
    138,671.19/208,037.97 = 43,907.04/x
  3. Step 3: Cross multiply
    138,671.19x = 208,037.97 × 43,907.04
  4. Step 4: Simplify right side
    138,671.19x = 9,134,331,470.31
  5. Step 5: Solve for x
    x = 9,134,331,470.31/138,671.19
  6. Step 6: Final answer
    x = 65,870.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.