Home / 140,165.73-193,432.77-76,507.65

Finding the Fourth Proportional to 140,165.73, 193,432.77 and 76,507.65

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Solution

The fourth proportional to 140,165.73, 193,432.77 and 76,507.65 is: 105,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,165.73 : 193,432.77 = 76,507.65 : x
  2. Step 2: Convert to fraction form
    140,165.73/193,432.77 = 76,507.65/x
  3. Step 3: Cross multiply
    140,165.73x = 193,432.77 × 76,507.65
  4. Step 4: Simplify right side
    140,165.73x = 14,799,086,665.69
  5. Step 5: Solve for x
    x = 14,799,086,665.69/140,165.73
  6. Step 6: Final answer
    x = 105,582.77

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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.