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Finding the Fourth Proportional to 90,803.44, 136,114.78 and 43,363.07

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Solution

The fourth proportional to 90,803.44, 136,114.78 and 43,363.07 is: 65,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,803.44 : 136,114.78 = 43,363.07 : x
  2. Step 2: Convert to fraction form
    90,803.44/136,114.78 = 43,363.07/x
  3. Step 3: Cross multiply
    90,803.44x = 136,114.78 × 43,363.07
  4. Step 4: Simplify right side
    90,803.44x = 5,902,354,965.05
  5. Step 5: Solve for x
    x = 5,902,354,965.05/90,803.44
  6. Step 6: Final answer
    x = 65,001.45

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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.