Home / 140,286.13-193,595.81-76,623.91

Finding the Fourth Proportional to 140,286.13, 193,595.81 and 76,623.91

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Solution

The fourth proportional to 140,286.13, 193,595.81 and 76,623.91 is: 105,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,286.13 : 193,595.81 = 76,623.91 : x
  2. Step 2: Convert to fraction form
    140,286.13/193,595.81 = 76,623.91/x
  3. Step 3: Cross multiply
    140,286.13x = 193,595.81 × 76,623.91
  4. Step 4: Simplify right side
    140,286.13x = 14,834,067,054.71
  5. Step 5: Solve for x
    x = 14,834,067,054.71/140,286.13
  6. Step 6: Final answer
    x = 105,741.51

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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.