Home / 132,338.06-182,605.96-78,621.70

Finding the Fourth Proportional to 132,338.06, 182,605.96 and 78,621.70

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Solution

The fourth proportional to 132,338.06, 182,605.96 and 78,621.70 is: 108,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,338.06 : 182,605.96 = 78,621.70 : x
  2. Step 2: Convert to fraction form
    132,338.06/182,605.96 = 78,621.70/x
  3. Step 3: Cross multiply
    132,338.06x = 182,605.96 × 78,621.70
  4. Step 4: Simplify right side
    132,338.06x = 14,356,791,005.33
  5. Step 5: Solve for x
    x = 14,356,791,005.33/132,338.06
  6. Step 6: Final answer
    x = 108,485.73

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1.5x scale

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.