Home / 102,321.78-153,475.54-38,267.72

Finding the Fourth Proportional to 102,321.78, 153,475.54 and 38,267.72

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Solution

The fourth proportional to 102,321.78, 153,475.54 and 38,267.72 is: 57,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,321.78 : 153,475.54 = 38,267.72 : x
  2. Step 2: Convert to fraction form
    102,321.78/153,475.54 = 38,267.72/x
  3. Step 3: Cross multiply
    102,321.78x = 153,475.54 × 38,267.72
  4. Step 4: Simplify right side
    102,321.78x = 5,873,158,991.57
  5. Step 5: Solve for x
    x = 5,873,158,991.57/102,321.78
  6. Step 6: Final answer
    x = 57,398.91

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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.