Home / 131,852.12-181,956.80-71,422.77

Finding the Fourth Proportional to 131,852.12, 181,956.80 and 71,422.77

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Solution

The fourth proportional to 131,852.12, 181,956.80 and 71,422.77 is: 98,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,852.12 : 181,956.80 = 71,422.77 : x
  2. Step 2: Convert to fraction form
    131,852.12/181,956.80 = 71,422.77/x
  3. Step 3: Cross multiply
    131,852.12x = 181,956.80 × 71,422.77
  4. Step 4: Simplify right side
    131,852.12x = 12,995,858,676.34
  5. Step 5: Solve for x
    x = 12,995,858,676.34/131,852.12
  6. Step 6: Final answer
    x = 98,563.90

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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.