Home / 187,072.47-280,636.38-68,734.59

Finding the Fourth Proportional to 187,072.47, 280,636.38 and 68,734.59

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Solution

The fourth proportional to 187,072.47, 280,636.38 and 68,734.59 is: 103,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,072.47 : 280,636.38 = 68,734.59 : x
  2. Step 2: Convert to fraction form
    187,072.47/280,636.38 = 68,734.59/x
  3. Step 3: Cross multiply
    187,072.47x = 280,636.38 × 68,734.59
  4. Step 4: Simplify right side
    187,072.47x = 19,289,426,518.38
  5. Step 5: Solve for x
    x = 19,289,426,518.38/187,072.47
  6. Step 6: Final answer
    x = 103,112.05

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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.