Home / 131,652.10-181,679.16-71,222.58

Finding the Fourth Proportional to 131,652.10, 181,679.16 and 71,222.58

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Solution

The fourth proportional to 131,652.10, 181,679.16 and 71,222.58 is: 98,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,652.10 : 181,679.16 = 71,222.58 : x
  2. Step 2: Convert to fraction form
    131,652.10/181,679.16 = 71,222.58/x
  3. Step 3: Cross multiply
    131,652.10x = 181,679.16 × 71,222.58
  4. Step 4: Simplify right side
    131,652.10x = 12,939,658,507.43
  5. Step 5: Solve for x
    x = 12,939,658,507.43/131,652.10
  6. Step 6: Final answer
    x = 98,286.76

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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.