Home / 131,290.88-197,111.36-111,695.36

Finding the Fourth Proportional to 131,290.88, 197,111.36 and 111,695.36

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Solution

The fourth proportional to 131,290.88, 197,111.36 and 111,695.36 is: 167,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,290.88 : 197,111.36 = 111,695.36 : x
  2. Step 2: Convert to fraction form
    131,290.88/197,111.36 = 111,695.36/x
  3. Step 3: Cross multiply
    131,290.88x = 197,111.36 × 111,695.36
  4. Step 4: Simplify right side
    131,290.88x = 22,016,424,315.29
  5. Step 5: Solve for x
    x = 22,016,424,315.29/131,290.88
  6. Step 6: Final answer
    x = 167,691.95

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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.