Home / 131,899.30-182,029.96-74,518.72

Finding the Fourth Proportional to 131,899.30, 182,029.96 and 74,518.72

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Solution

The fourth proportional to 131,899.30, 182,029.96 and 74,518.72 is: 102,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,899.30 : 182,029.96 = 74,518.72 : x
  2. Step 2: Convert to fraction form
    131,899.30/182,029.96 = 74,518.72/x
  3. Step 3: Cross multiply
    131,899.30x = 182,029.96 × 74,518.72
  4. Step 4: Simplify right side
    131,899.30x = 13,564,639,620.85
  5. Step 5: Solve for x
    x = 13,564,639,620.85/131,899.30
  6. Step 6: Final answer
    x = 102,840.88

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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.