Home / 120,800.40-166,678.02-73,052.70

Finding the Fourth Proportional to 120,800.40, 166,678.02 and 73,052.70

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Solution

The fourth proportional to 120,800.40, 166,678.02 and 73,052.70 is: 100,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,800.40 : 166,678.02 = 73,052.70 : x
  2. Step 2: Convert to fraction form
    120,800.40/166,678.02 = 73,052.70/x
  3. Step 3: Cross multiply
    120,800.40x = 166,678.02 × 73,052.70
  4. Step 4: Simplify right side
    120,800.40x = 12,176,279,391.65
  5. Step 5: Solve for x
    x = 12,176,279,391.65/120,800.40
  6. Step 6: Final answer
    x = 100,796.68

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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.