Home / 102,658.17-153,987.25-38,628.35

Finding the Fourth Proportional to 102,658.17, 153,987.25 and 38,628.35

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Solution

The fourth proportional to 102,658.17, 153,987.25 and 38,628.35 is: 57,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,658.17 : 153,987.25 = 38,628.35 : x
  2. Step 2: Convert to fraction form
    102,658.17/153,987.25 = 38,628.35/x
  3. Step 3: Cross multiply
    102,658.17x = 153,987.25 × 38,628.35
  4. Step 4: Simplify right side
    102,658.17x = 5,948,273,388.54
  5. Step 5: Solve for x
    x = 5,948,273,388.54/102,658.17
  6. Step 6: Final answer
    x = 57,942.52

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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.