Home / 102,725.83-141,758.91-57,404.18

Finding the Fourth Proportional to 102,725.83, 141,758.91 and 57,404.18

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Solution

The fourth proportional to 102,725.83, 141,758.91 and 57,404.18 is: 79,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,725.83 : 141,758.91 = 57,404.18 : x
  2. Step 2: Convert to fraction form
    102,725.83/141,758.91 = 57,404.18/x
  3. Step 3: Cross multiply
    102,725.83x = 141,758.91 × 57,404.18
  4. Step 4: Simplify right side
    102,725.83x = 8,137,553,986.24
  5. Step 5: Solve for x
    x = 8,137,553,986.24/102,725.83
  6. Step 6: Final answer
    x = 79,216.24

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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.