Home / 109,470.96-151,069.74-61,724.04

Finding the Fourth Proportional to 109,470.96, 151,069.74 and 61,724.04

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Solution

The fourth proportional to 109,470.96, 151,069.74 and 61,724.04 is: 85,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,470.96 : 151,069.74 = 61,724.04 : x
  2. Step 2: Convert to fraction form
    109,470.96/151,069.74 = 61,724.04/x
  3. Step 3: Cross multiply
    109,470.96x = 151,069.74 × 61,724.04
  4. Step 4: Simplify right side
    109,470.96x = 9,324,634,674.55
  5. Step 5: Solve for x
    x = 9,324,634,674.55/109,470.96
  6. Step 6: Final answer
    x = 85,179.07

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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.