Home / 140,226.75-193,513.86-76,565.34

Finding the Fourth Proportional to 140,226.75, 193,513.86 and 76,565.34

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Solution

The fourth proportional to 140,226.75, 193,513.86 and 76,565.34 is: 105,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,226.75 : 193,513.86 = 76,565.34 : x
  2. Step 2: Convert to fraction form
    140,226.75/193,513.86 = 76,565.34/x
  3. Step 3: Cross multiply
    140,226.75x = 193,513.86 × 76,565.34
  4. Step 4: Simplify right side
    140,226.75x = 14,816,454,485.61
  5. Step 5: Solve for x
    x = 14,816,454,485.61/140,226.75
  6. Step 6: Final answer
    x = 105,660.69

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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.