Home / 131,325.03-181,235.33-80,321.76

Finding the Fourth Proportional to 131,325.03, 181,235.33 and 80,321.76

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Solution

The fourth proportional to 131,325.03, 181,235.33 and 80,321.76 is: 110,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,325.03 : 181,235.33 = 80,321.76 : x
  2. Step 2: Convert to fraction form
    131,325.03/181,235.33 = 80,321.76/x
  3. Step 3: Cross multiply
    131,325.03x = 181,235.33 × 80,321.76
  4. Step 4: Simplify right side
    131,325.03x = 14,557,140,278.17
  5. Step 5: Solve for x
    x = 14,557,140,278.17/131,325.03
  6. Step 6: Final answer
    x = 110,848.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.