Home / 105,908.19-146,116.76-67,690.11

Finding the Fourth Proportional to 105,908.19, 146,116.76 and 67,690.11

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Solution

The fourth proportional to 105,908.19, 146,116.76 and 67,690.11 is: 93,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,908.19 : 146,116.76 = 67,690.11 : x
  2. Step 2: Convert to fraction form
    105,908.19/146,116.76 = 67,690.11/x
  3. Step 3: Cross multiply
    105,908.19x = 146,116.76 × 67,690.11
  4. Step 4: Simplify right side
    105,908.19x = 9,890,659,557.24
  5. Step 5: Solve for x
    x = 9,890,659,557.24/105,908.19
  6. Step 6: Final answer
    x = 93,389.00

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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.