Home / 140,154.10-193,412.83-76,491.89

Finding the Fourth Proportional to 140,154.10, 193,412.83 and 76,491.89

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Solution

The fourth proportional to 140,154.10, 193,412.83 and 76,491.89 is: 105,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,154.10 : 193,412.83 = 76,491.89 : x
  2. Step 2: Convert to fraction form
    140,154.10/193,412.83 = 76,491.89/x
  3. Step 3: Cross multiply
    140,154.10x = 193,412.83 × 76,491.89
  4. Step 4: Simplify right side
    140,154.10x = 14,794,512,916.95
  5. Step 5: Solve for x
    x = 14,794,512,916.95/140,154.10
  6. Step 6: Final answer
    x = 105,558.90

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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.