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Finding the Fourth Proportional to 172,984.98, 259,389.99 and 88,727.16

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Solution

The fourth proportional to 172,984.98, 259,389.99 and 88,727.16 is: 133,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,984.98 : 259,389.99 = 88,727.16 : x
  2. Step 2: Convert to fraction form
    172,984.98/259,389.99 = 88,727.16/x
  3. Step 3: Cross multiply
    172,984.98x = 259,389.99 × 88,727.16
  4. Step 4: Simplify right side
    172,984.98x = 23,014,937,145.13
  5. Step 5: Solve for x
    x = 23,014,937,145.13/172,984.98
  6. Step 6: Final answer
    x = 133,045.87

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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.