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Finding the Fourth Proportional to 99,685.80, 149,543.64 and 32,195.28

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Solution

The fourth proportional to 99,685.80, 149,543.64 and 32,195.28 is: 48,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,685.80 : 149,543.64 = 32,195.28 : x
  2. Step 2: Convert to fraction form
    99,685.80/149,543.64 = 32,195.28/x
  3. Step 3: Cross multiply
    99,685.80x = 149,543.64 × 32,195.28
  4. Step 4: Simplify right side
    99,685.80x = 4,814,599,362.02
  5. Step 5: Solve for x
    x = 4,814,599,362.02/99,685.80
  6. Step 6: Final answer
    x = 48,297.75

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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.