Home / 102,867.29-154,051.77-71,188.58

Finding the Fourth Proportional to 102,867.29, 154,051.77 and 71,188.58

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Solution

The fourth proportional to 102,867.29, 154,051.77 and 71,188.58 is: 106,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,867.29 : 154,051.77 = 71,188.58 : x
  2. Step 2: Convert to fraction form
    102,867.29/154,051.77 = 71,188.58/x
  3. Step 3: Cross multiply
    102,867.29x = 154,051.77 × 71,188.58
  4. Step 4: Simplify right side
    102,867.29x = 10,966,726,752.79
  5. Step 5: Solve for x
    x = 10,966,726,752.79/102,867.29
  6. Step 6: Final answer
    x = 106,610.44

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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.