Home / 220,076.93-303,707.44-129,436.72

Finding the Fourth Proportional to 220,076.93, 303,707.44 and 129,436.72

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Solution

The fourth proportional to 220,076.93, 303,707.44 and 129,436.72 is: 178,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,076.93 : 303,707.44 = 129,436.72 : x
  2. Step 2: Convert to fraction form
    220,076.93/303,707.44 = 129,436.72/x
  3. Step 3: Cross multiply
    220,076.93x = 303,707.44 × 129,436.72
  4. Step 4: Simplify right side
    220,076.93x = 39,310,894,275.72
  5. Step 5: Solve for x
    x = 39,310,894,275.72/220,076.93
  6. Step 6: Final answer
    x = 178,623.42

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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.