Home / 220,077.93-303,708.82-129,437.72

Finding the Fourth Proportional to 220,077.93, 303,708.82 and 129,437.72

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Solution

The fourth proportional to 220,077.93, 303,708.82 and 129,437.72 is: 178,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,077.93 : 303,708.82 = 129,437.72 : x
  2. Step 2: Convert to fraction form
    220,077.93/303,708.82 = 129,437.72/x
  3. Step 3: Cross multiply
    220,077.93x = 303,708.82 × 129,437.72
  4. Step 4: Simplify right side
    220,077.93x = 39,311,377,204.69
  5. Step 5: Solve for x
    x = 39,311,377,204.69/220,077.93
  6. Step 6: Final answer
    x = 178,624.80

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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.