Home / 105,718.14-145,967.55-68,058

Finding the Fourth Proportional to 105,718.14, 145,967.55 and 68,058

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Solution

The fourth proportional to 105,718.14, 145,967.55 and 68,058 is: 93,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,718.14 : 145,967.55 = 68,058 : x
  2. Step 2: Convert to fraction form
    105,718.14/145,967.55 = 68,058/x
  3. Step 3: Cross multiply
    105,718.14x = 145,967.55 × 68,058
  4. Step 4: Simplify right side
    105,718.14x = 9,934,259,517.90
  5. Step 5: Solve for x
    x = 9,934,259,517.90/105,718.14
  6. Step 6: Final answer
    x = 93,969.30

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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.