Home / 105,908.31-146,116.93-67,690.23

Finding the Fourth Proportional to 105,908.31, 146,116.93 and 67,690.23

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Solution

The fourth proportional to 105,908.31, 146,116.93 and 67,690.23 is: 93,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,908.31 : 146,116.93 = 67,690.23 : x
  2. Step 2: Convert to fraction form
    105,908.31/146,116.93 = 67,690.23/x
  3. Step 3: Cross multiply
    105,908.31x = 146,116.93 × 67,690.23
  4. Step 4: Simplify right side
    105,908.31x = 9,890,688,794.66
  5. Step 5: Solve for x
    x = 9,890,688,794.66/105,908.31
  6. Step 6: Final answer
    x = 93,389.16

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1.5x scale

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.