Home / 103,108.46-142,291.35-57,796.52

Finding the Fourth Proportional to 103,108.46, 142,291.35 and 57,796.52

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Solution

The fourth proportional to 103,108.46, 142,291.35 and 57,796.52 is: 79,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,108.46 : 142,291.35 = 57,796.52 : x
  2. Step 2: Convert to fraction form
    103,108.46/142,291.35 = 57,796.52/x
  3. Step 3: Cross multiply
    103,108.46x = 142,291.35 × 57,796.52
  4. Step 4: Simplify right side
    103,108.46x = 8,223,944,144.65
  5. Step 5: Solve for x
    x = 8,223,944,144.65/103,108.46
  6. Step 6: Final answer
    x = 79,760.13

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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.