Home / 187,085.82-280,628.73-68,705.94

Finding the Fourth Proportional to 187,085.82, 280,628.73 and 68,705.94

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Solution

The fourth proportional to 187,085.82, 280,628.73 and 68,705.94 is: 103,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,085.82 : 280,628.73 = 68,705.94 : x
  2. Step 2: Convert to fraction form
    187,085.82/280,628.73 = 68,705.94/x
  3. Step 3: Cross multiply
    187,085.82x = 280,628.73 × 68,705.94
  4. Step 4: Simplify right side
    187,085.82x = 19,280,860,685.66
  5. Step 5: Solve for x
    x = 19,280,860,685.66/187,085.82
  6. Step 6: Final answer
    x = 103,058.91

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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.