Home / 188,020.72-282,117.20-81,437.27

Finding the Fourth Proportional to 188,020.72, 282,117.20 and 81,437.27

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Solution

The fourth proportional to 188,020.72, 282,117.20 and 81,437.27 is: 122,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,020.72 : 282,117.20 = 81,437.27 : x
  2. Step 2: Convert to fraction form
    188,020.72/282,117.20 = 81,437.27/x
  3. Step 3: Cross multiply
    188,020.72x = 282,117.20 × 81,437.27
  4. Step 4: Simplify right side
    188,020.72x = 22,974,855,496.93
  5. Step 5: Solve for x
    x = 22,974,855,496.93/188,020.72
  6. Step 6: Final answer
    x = 122,193.21

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1.5x scale

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.