Home / 172,330.05-258,337.51-72,497.30

Finding the Fourth Proportional to 172,330.05, 258,337.51 and 72,497.30

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Solution

The fourth proportional to 172,330.05, 258,337.51 and 72,497.30 is: 108,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,330.05 : 258,337.51 = 72,497.30 : x
  2. Step 2: Convert to fraction form
    172,330.05/258,337.51 = 72,497.30/x
  3. Step 3: Cross multiply
    172,330.05x = 258,337.51 × 72,497.30
  4. Step 4: Simplify right side
    172,330.05x = 18,728,771,459.56
  5. Step 5: Solve for x
    x = 18,728,771,459.56/172,330.05
  6. Step 6: Final answer
    x = 108,679.66

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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.