Home / 140,777.86-194,117.78-89,709.70

Finding the Fourth Proportional to 140,777.86, 194,117.78 and 89,709.70

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Solution

The fourth proportional to 140,777.86, 194,117.78 and 89,709.70 is: 123,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,777.86 : 194,117.78 = 89,709.70 : x
  2. Step 2: Convert to fraction form
    140,777.86/194,117.78 = 89,709.70/x
  3. Step 3: Cross multiply
    140,777.86x = 194,117.78 × 89,709.70
  4. Step 4: Simplify right side
    140,777.86x = 17,414,247,808.47
  5. Step 5: Solve for x
    x = 17,414,247,808.47/140,777.86
  6. Step 6: Final answer
    x = 123,700.19

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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.