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Finding the Fourth Proportional to 121,104.40, 181,591.80 and 50,904.40

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Solution

The fourth proportional to 121,104.40, 181,591.80 and 50,904.40 is: 76,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,104.40 : 181,591.80 = 50,904.40 : x
  2. Step 2: Convert to fraction form
    121,104.40/181,591.80 = 50,904.40/x
  3. Step 3: Cross multiply
    121,104.40x = 181,591.80 × 50,904.40
  4. Step 4: Simplify right side
    121,104.40x = 9,243,821,623.92
  5. Step 5: Solve for x
    x = 9,243,821,623.92/121,104.40
  6. Step 6: Final answer
    x = 76,329.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.