Home / 140,315.10-193,641.75-79,886.94

Finding the Fourth Proportional to 140,315.10, 193,641.75 and 79,886.94

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Solution

The fourth proportional to 140,315.10, 193,641.75 and 79,886.94 is: 110,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,315.10 : 193,641.75 = 79,886.94 : x
  2. Step 2: Convert to fraction form
    140,315.10/193,641.75 = 79,886.94/x
  3. Step 3: Cross multiply
    140,315.10x = 193,641.75 × 79,886.94
  4. Step 4: Simplify right side
    140,315.10x = 15,469,446,863.75
  5. Step 5: Solve for x
    x = 15,469,446,863.75/140,315.10
  6. Step 6: Final answer
    x = 110,247.91

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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.