Home / 132,420.11-182,741.83-71,990.98

Finding the Fourth Proportional to 132,420.11, 182,741.83 and 71,990.98

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Solution

The fourth proportional to 132,420.11, 182,741.83 and 71,990.98 is: 99,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,420.11 : 182,741.83 = 71,990.98 : x
  2. Step 2: Convert to fraction form
    132,420.11/182,741.83 = 71,990.98/x
  3. Step 3: Cross multiply
    132,420.11x = 182,741.83 × 71,990.98
  4. Step 4: Simplify right side
    132,420.11x = 13,155,763,705.57
  5. Step 5: Solve for x
    x = 13,155,763,705.57/132,420.11
  6. Step 6: Final answer
    x = 99,348.69

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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.