Home / 131,266.24-181,161-80,312.92

Finding the Fourth Proportional to 131,266.24, 181,161 and 80,312.92

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Solution

The fourth proportional to 131,266.24, 181,161 and 80,312.92 is: 110,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,266.24 : 181,161 = 80,312.92 : x
  2. Step 2: Convert to fraction form
    131,266.24/181,161 = 80,312.92/x
  3. Step 3: Cross multiply
    131,266.24x = 181,161 × 80,312.92
  4. Step 4: Simplify right side
    131,266.24x = 14,549,568,900.12
  5. Step 5: Solve for x
    x = 14,549,568,900.12/131,266.24
  6. Step 6: Final answer
    x = 110,840.14

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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.