Home / 148,742.82-205,265.09-81,674.82

Finding the Fourth Proportional to 148,742.82, 205,265.09 and 81,674.82

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Solution

The fourth proportional to 148,742.82, 205,265.09 and 81,674.82 is: 112,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,742.82 : 205,265.09 = 81,674.82 : x
  2. Step 2: Convert to fraction form
    148,742.82/205,265.09 = 81,674.82/x
  3. Step 3: Cross multiply
    148,742.82x = 205,265.09 × 81,674.82
  4. Step 4: Simplify right side
    148,742.82x = 16,764,988,869.66
  5. Step 5: Solve for x
    x = 16,764,988,869.66/148,742.82
  6. Step 6: Final answer
    x = 112,711.25

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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.