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Finding the Fourth Proportional to 172,344.78, 237,830.76 and 104,401.98

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Solution

The fourth proportional to 172,344.78, 237,830.76 and 104,401.98 is: 144,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,344.78 : 237,830.76 = 104,401.98 : x
  2. Step 2: Convert to fraction form
    172,344.78/237,830.76 = 104,401.98/x
  3. Step 3: Cross multiply
    172,344.78x = 237,830.76 × 104,401.98
  4. Step 4: Simplify right side
    172,344.78x = 24,830,002,248.90
  5. Step 5: Solve for x
    x = 24,830,002,248.90/172,344.78
  6. Step 6: Final answer
    x = 144,071.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.