Home / 99,194.88-148,646.52-78,185.16

Finding the Fourth Proportional to 99,194.88, 148,646.52 and 78,185.16

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Solution

The fourth proportional to 99,194.88, 148,646.52 and 78,185.16 is: 117,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,194.88 : 148,646.52 = 78,185.16 : x
  2. Step 2: Convert to fraction form
    99,194.88/148,646.52 = 78,185.16/x
  3. Step 3: Cross multiply
    99,194.88x = 148,646.52 × 78,185.16
  4. Step 4: Simplify right side
    99,194.88x = 11,621,951,949.64
  5. Step 5: Solve for x
    x = 11,621,951,949.64/99,194.88
  6. Step 6: Final answer
    x = 117,162.82

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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.