Home / 140,234.12-193,521.62-76,571.72

Finding the Fourth Proportional to 140,234.12, 193,521.62 and 76,571.72

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Solution

The fourth proportional to 140,234.12, 193,521.62 and 76,571.72 is: 105,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,234.12 : 193,521.62 = 76,571.72 : x
  2. Step 2: Convert to fraction form
    140,234.12/193,521.62 = 76,571.72/x
  3. Step 3: Cross multiply
    140,234.12x = 193,521.62 × 76,571.72
  4. Step 4: Simplify right side
    140,234.12x = 14,818,283,300.59
  5. Step 5: Solve for x
    x = 14,818,283,300.59/140,234.12
  6. Step 6: Final answer
    x = 105,668.17

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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.