Home / 188,282.12-282,423.20-55,162.40

Finding the Fourth Proportional to 188,282.12, 282,423.20 and 55,162.40

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Solution

The fourth proportional to 188,282.12, 282,423.20 and 55,162.40 is: 82,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,282.12 : 282,423.20 = 55,162.40 : x
  2. Step 2: Convert to fraction form
    188,282.12/282,423.20 = 55,162.40/x
  3. Step 3: Cross multiply
    188,282.12x = 282,423.20 × 55,162.40
  4. Step 4: Simplify right side
    188,282.12x = 15,579,139,839.75
  5. Step 5: Solve for x
    x = 15,579,139,839.75/188,282.12
  6. Step 6: Final answer
    x = 82,743.60

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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.