Home / 102,867.30-154,051.76-71,188.58

Finding the Fourth Proportional to 102,867.30, 154,051.76 and 71,188.58

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Solution

The fourth proportional to 102,867.30, 154,051.76 and 71,188.58 is: 106,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,867.30 : 154,051.76 = 71,188.58 : x
  2. Step 2: Convert to fraction form
    102,867.30/154,051.76 = 71,188.58/x
  3. Step 3: Cross multiply
    102,867.30x = 154,051.76 × 71,188.58
  4. Step 4: Simplify right side
    102,867.30x = 10,966,726,040.90
  5. Step 5: Solve for x
    x = 10,966,726,040.90/102,867.30
  6. Step 6: Final answer
    x = 106,610.42

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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.