Home / 140,869.87-194,399.30-77,207.51

Finding the Fourth Proportional to 140,869.87, 194,399.30 and 77,207.51

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Solution

The fourth proportional to 140,869.87, 194,399.30 and 77,207.51 is: 106,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,869.87 : 194,399.30 = 77,207.51 : x
  2. Step 2: Convert to fraction form
    140,869.87/194,399.30 = 77,207.51/x
  3. Step 3: Cross multiply
    140,869.87x = 194,399.30 × 77,207.51
  4. Step 4: Simplify right side
    140,869.87x = 15,009,086,577.76
  5. Step 5: Solve for x
    x = 15,009,086,577.76/140,869.87
  6. Step 6: Final answer
    x = 106,545.76

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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.