Home / 99,844.96-149,802-66,698.08

Finding the Fourth Proportional to 99,844.96, 149,802 and 66,698.08

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Solution

The fourth proportional to 99,844.96, 149,802 and 66,698.08 is: 100,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844.96 : 149,802 = 66,698.08 : x
  2. Step 2: Convert to fraction form
    99,844.96/149,802 = 66,698.08/x
  3. Step 3: Cross multiply
    99,844.96x = 149,802 × 66,698.08
  4. Step 4: Simplify right side
    99,844.96x = 9,991,505,780.16
  5. Step 5: Solve for x
    x = 9,991,505,780.16/99,844.96
  6. Step 6: Final answer
    x = 100,070.21

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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.