Home / 140,120.57-193,371.05-76,461.86

Finding the Fourth Proportional to 140,120.57, 193,371.05 and 76,461.86

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Solution

The fourth proportional to 140,120.57, 193,371.05 and 76,461.86 is: 105,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,120.57 : 193,371.05 = 76,461.86 : x
  2. Step 2: Convert to fraction form
    140,120.57/193,371.05 = 76,461.86/x
  3. Step 3: Cross multiply
    140,120.57x = 193,371.05 × 76,461.86
  4. Step 4: Simplify right side
    140,120.57x = 14,785,510,153.15
  5. Step 5: Solve for x
    x = 14,785,510,153.15/140,120.57
  6. Step 6: Final answer
    x = 105,519.91

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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.