Home / 129,616.08-193,962.16-89,643.16

Finding the Fourth Proportional to 129,616.08, 193,962.16 and 89,643.16

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Solution

The fourth proportional to 129,616.08, 193,962.16 and 89,643.16 is: 134,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,616.08 : 193,962.16 = 89,643.16 : x
  2. Step 2: Convert to fraction form
    129,616.08/193,962.16 = 89,643.16/x
  3. Step 3: Cross multiply
    129,616.08x = 193,962.16 × 89,643.16
  4. Step 4: Simplify right side
    129,616.08x = 17,387,380,942.83
  5. Step 5: Solve for x
    x = 17,387,380,942.83/129,616.08
  6. Step 6: Final answer
    x = 134,145.25

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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.