Home / 99,913.55-149,976.99-43,015.59

Finding the Fourth Proportional to 99,913.55, 149,976.99 and 43,015.59

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Solution

The fourth proportional to 99,913.55, 149,976.99 and 43,015.59 is: 64,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,913.55 : 149,976.99 = 43,015.59 : x
  2. Step 2: Convert to fraction form
    99,913.55/149,976.99 = 43,015.59/x
  3. Step 3: Cross multiply
    99,913.55x = 149,976.99 × 43,015.59
  4. Step 4: Simplify right side
    99,913.55x = 6,451,348,711.27
  5. Step 5: Solve for x
    x = 6,451,348,711.27/99,913.55
  6. Step 6: Final answer
    x = 64,569.31

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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.