Home / 209,966.56-289,754.76-134,558.80

Finding the Fourth Proportional to 209,966.56, 289,754.76 and 134,558.80

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Solution

The fourth proportional to 209,966.56, 289,754.76 and 134,558.80 is: 185,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,966.56 : 289,754.76 = 134,558.80 : x
  2. Step 2: Convert to fraction form
    209,966.56/289,754.76 = 134,558.80/x
  3. Step 3: Cross multiply
    209,966.56x = 289,754.76 × 134,558.80
  4. Step 4: Simplify right side
    209,966.56x = 38,989,052,799.89
  5. Step 5: Solve for x
    x = 38,989,052,799.89/209,966.56
  6. Step 6: Final answer
    x = 185,691.73

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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.