Home / 102,671.88-141,685.66-57,350.68

Finding the Fourth Proportional to 102,671.88, 141,685.66 and 57,350.68

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Solution

The fourth proportional to 102,671.88, 141,685.66 and 57,350.68 is: 79,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,671.88 : 141,685.66 = 57,350.68 : x
  2. Step 2: Convert to fraction form
    102,671.88/141,685.66 = 57,350.68/x
  3. Step 3: Cross multiply
    102,671.88x = 141,685.66 × 57,350.68
  4. Step 4: Simplify right side
    102,671.88x = 8,125,768,947.25
  5. Step 5: Solve for x
    x = 8,125,768,947.25/102,671.88
  6. Step 6: Final answer
    x = 79,143.08

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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.