Home / 140,215.32-193,489.47-76,551.66

Finding the Fourth Proportional to 140,215.32, 193,489.47 and 76,551.66

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Solution

The fourth proportional to 140,215.32, 193,489.47 and 76,551.66 is: 105,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,215.32 : 193,489.47 = 76,551.66 : x
  2. Step 2: Convert to fraction form
    140,215.32/193,489.47 = 76,551.66/x
  3. Step 3: Cross multiply
    140,215.32x = 193,489.47 × 76,551.66
  4. Step 4: Simplify right side
    140,215.32x = 14,811,940,121.02
  5. Step 5: Solve for x
    x = 14,811,940,121.02/140,215.32
  6. Step 6: Final answer
    x = 105,637.10

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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.