Home / 112,990.19-169,540.56-45,519.41

Finding the Fourth Proportional to 112,990.19, 169,540.56 and 45,519.41

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Solution

The fourth proportional to 112,990.19, 169,540.56 and 45,519.41 is: 68,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,990.19 : 169,540.56 = 45,519.41 : x
  2. Step 2: Convert to fraction form
    112,990.19/169,540.56 = 45,519.41/x
  3. Step 3: Cross multiply
    112,990.19x = 169,540.56 × 45,519.41
  4. Step 4: Simplify right side
    112,990.19x = 7,717,386,686.12
  5. Step 5: Solve for x
    x = 7,717,386,686.12/112,990.19
  6. Step 6: Final answer
    x = 68,301.39

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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.