Home / 140,724.65-194,194.19-77,061.35

Finding the Fourth Proportional to 140,724.65, 194,194.19 and 77,061.35

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Solution

The fourth proportional to 140,724.65, 194,194.19 and 77,061.35 is: 106,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.65 : 194,194.19 = 77,061.35 : x
  2. Step 2: Convert to fraction form
    140,724.65/194,194.19 = 77,061.35/x
  3. Step 3: Cross multiply
    140,724.65x = 194,194.19 × 77,061.35
  4. Step 4: Simplify right side
    140,724.65x = 14,964,866,058.25
  5. Step 5: Solve for x
    x = 14,964,866,058.25/140,724.65
  6. Step 6: Final answer
    x = 106,341.47

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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.