Home / 187,142.15-280,902.47-165,930.68

Finding the Fourth Proportional to 187,142.15, 280,902.47 and 165,930.68

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Solution

The fourth proportional to 187,142.15, 280,902.47 and 165,930.68 is: 249,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.15 : 280,902.47 = 165,930.68 : x
  2. Step 2: Convert to fraction form
    187,142.15/280,902.47 = 165,930.68/x
  3. Step 3: Cross multiply
    187,142.15x = 280,902.47 × 165,930.68
  4. Step 4: Simplify right side
    187,142.15x = 46,610,337,733.38
  5. Step 5: Solve for x
    x = 46,610,337,733.38/187,142.15
  6. Step 6: Final answer
    x = 249,063.81

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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.