Home / 220,194.12-303,868.48-129,553.50

Finding the Fourth Proportional to 220,194.12, 303,868.48 and 129,553.50

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Solution

The fourth proportional to 220,194.12, 303,868.48 and 129,553.50 is: 178,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,194.12 : 303,868.48 = 129,553.50 : x
  2. Step 2: Convert to fraction form
    220,194.12/303,868.48 = 129,553.50/x
  3. Step 3: Cross multiply
    220,194.12x = 303,868.48 × 129,553.50
  4. Step 4: Simplify right side
    220,194.12x = 39,367,225,123.68
  5. Step 5: Solve for x
    x = 39,367,225,123.68/220,194.12
  6. Step 6: Final answer
    x = 178,784.18

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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.