Home / 123,731.08-185,314.86-96,909.64

Finding the Fourth Proportional to 123,731.08, 185,314.86 and 96,909.64

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Solution

The fourth proportional to 123,731.08, 185,314.86 and 96,909.64 is: 145,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,731.08 : 185,314.86 = 96,909.64 : x
  2. Step 2: Convert to fraction form
    123,731.08/185,314.86 = 96,909.64/x
  3. Step 3: Cross multiply
    123,731.08x = 185,314.86 × 96,909.64
  4. Step 4: Simplify right side
    123,731.08x = 17,958,796,369.25
  5. Step 5: Solve for x
    x = 17,958,796,369.25/123,731.08
  6. Step 6: Final answer
    x = 145,143.78

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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.