Home / 140,550.77-193,964.82-76,888.55

Finding the Fourth Proportional to 140,550.77, 193,964.82 and 76,888.55

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Solution

The fourth proportional to 140,550.77, 193,964.82 and 76,888.55 is: 106,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,550.77 : 193,964.82 = 76,888.55 : x
  2. Step 2: Convert to fraction form
    140,550.77/193,964.82 = 76,888.55/x
  3. Step 3: Cross multiply
    140,550.77x = 193,964.82 × 76,888.55
  4. Step 4: Simplify right side
    140,550.77x = 14,913,673,760.81
  5. Step 5: Solve for x
    x = 14,913,673,760.81/140,550.77
  6. Step 6: Final answer
    x = 106,108.80

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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.