Home / 102,725.54-141,758.54-57,403.90

Finding the Fourth Proportional to 102,725.54, 141,758.54 and 57,403.90

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Solution

The fourth proportional to 102,725.54, 141,758.54 and 57,403.90 is: 79,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,725.54 : 141,758.54 = 57,403.90 : x
  2. Step 2: Convert to fraction form
    102,725.54/141,758.54 = 57,403.90/x
  3. Step 3: Cross multiply
    102,725.54x = 141,758.54 × 57,403.90
  4. Step 4: Simplify right side
    102,725.54x = 8,137,492,963.52
  5. Step 5: Solve for x
    x = 8,137,492,963.52/102,725.54
  6. Step 6: Final answer
    x = 79,215.87

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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.