Home / 188,031.40-282,047.10-113,381.80

Finding the Fourth Proportional to 188,031.40, 282,047.10 and 113,381.80

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Solution

The fourth proportional to 188,031.40, 282,047.10 and 113,381.80 is: 170,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,031.40 : 282,047.10 = 113,381.80 : x
  2. Step 2: Convert to fraction form
    188,031.40/282,047.10 = 113,381.80/x
  3. Step 3: Cross multiply
    188,031.40x = 282,047.10 × 113,381.80
  4. Step 4: Simplify right side
    188,031.40x = 31,979,007,882.78
  5. Step 5: Solve for x
    x = 31,979,007,882.78/188,031.40
  6. Step 6: Final answer
    x = 170,072.70

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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.