Home / 105,264.41-145,418.57-91,092.65

Finding the Fourth Proportional to 105,264.41, 145,418.57 and 91,092.65

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Solution

The fourth proportional to 105,264.41, 145,418.57 and 91,092.65 is: 125,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.41 : 145,418.57 = 91,092.65 : x
  2. Step 2: Convert to fraction form
    105,264.41/145,418.57 = 91,092.65/x
  3. Step 3: Cross multiply
    105,264.41x = 145,418.57 × 91,092.65
  4. Step 4: Simplify right side
    105,264.41x = 13,246,562,621.33
  5. Step 5: Solve for x
    x = 13,246,562,621.33/105,264.41
  6. Step 6: Final answer
    x = 125,840.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.