Home / 112,309.80-154,986.66-61,320.84

Finding the Fourth Proportional to 112,309.80, 154,986.66 and 61,320.84

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Solution

The fourth proportional to 112,309.80, 154,986.66 and 61,320.84 is: 84,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,309.80 : 154,986.66 = 61,320.84 : x
  2. Step 2: Convert to fraction form
    112,309.80/154,986.66 = 61,320.84/x
  3. Step 3: Cross multiply
    112,309.80x = 154,986.66 × 61,320.84
  4. Step 4: Simplify right side
    112,309.80x = 9,503,912,179.99
  5. Step 5: Solve for x
    x = 9,503,912,179.99/112,309.80
  6. Step 6: Final answer
    x = 84,622.29

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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.