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Finding the Fourth Proportional to 121,015.60, 181,566.60 and 50,916.40

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Solution

The fourth proportional to 121,015.60, 181,566.60 and 50,916.40 is: 76,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,015.60 : 181,566.60 = 50,916.40 : x
  2. Step 2: Convert to fraction form
    121,015.60/181,566.60 = 50,916.40/x
  3. Step 3: Cross multiply
    121,015.60x = 181,566.60 × 50,916.40
  4. Step 4: Simplify right side
    121,015.60x = 9,244,717,632.24
  5. Step 5: Solve for x
    x = 9,244,717,632.24/121,015.60
  6. Step 6: Final answer
    x = 76,392.78

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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.