Home / 140,305.10-193,613.78-76,630.59

Finding the Fourth Proportional to 140,305.10, 193,613.78 and 76,630.59

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Solution

The fourth proportional to 140,305.10, 193,613.78 and 76,630.59 is: 105,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,305.10 : 193,613.78 = 76,630.59 : x
  2. Step 2: Convert to fraction form
    140,305.10/193,613.78 = 76,630.59/x
  3. Step 3: Cross multiply
    140,305.10x = 193,613.78 × 76,630.59
  4. Step 4: Simplify right side
    140,305.10x = 14,836,737,810.38
  5. Step 5: Solve for x
    x = 14,836,737,810.38/140,305.10
  6. Step 6: Final answer
    x = 105,746.25

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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.