Home / 140,724.90-194,194.53-77,061.60

Finding the Fourth Proportional to 140,724.90, 194,194.53 and 77,061.60

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Solution

The fourth proportional to 140,724.90, 194,194.53 and 77,061.60 is: 106,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.90 : 194,194.53 = 77,061.60 : x
  2. Step 2: Convert to fraction form
    140,724.90/194,194.53 = 77,061.60/x
  3. Step 3: Cross multiply
    140,724.90x = 194,194.53 × 77,061.60
  4. Step 4: Simplify right side
    140,724.90x = 14,964,941,193.05
  5. Step 5: Solve for x
    x = 14,964,941,193.05/140,724.90
  6. Step 6: Final answer
    x = 106,341.81

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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.