Home / 192,922.80-288,995.40-109,719.60

Finding the Fourth Proportional to 192,922.80, 288,995.40 and 109,719.60

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Solution

The fourth proportional to 192,922.80, 288,995.40 and 109,719.60 is: 164,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,922.80 : 288,995.40 = 109,719.60 : x
  2. Step 2: Convert to fraction form
    192,922.80/288,995.40 = 109,719.60/x
  3. Step 3: Cross multiply
    192,922.80x = 288,995.40 × 109,719.60
  4. Step 4: Simplify right side
    192,922.80x = 31,708,459,689.84
  5. Step 5: Solve for x
    x = 31,708,459,689.84/192,922.80
  6. Step 6: Final answer
    x = 164,358.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.