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Finding the Fourth Proportional to 145,092.98, 217,612.47 and 60,830.30

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Solution

The fourth proportional to 145,092.98, 217,612.47 and 60,830.30 is: 91,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,092.98 : 217,612.47 = 60,830.30 : x
  2. Step 2: Convert to fraction form
    145,092.98/217,612.47 = 60,830.30/x
  3. Step 3: Cross multiply
    145,092.98x = 217,612.47 × 60,830.30
  4. Step 4: Simplify right side
    145,092.98x = 13,237,431,833.84
  5. Step 5: Solve for x
    x = 13,237,431,833.84/145,092.98
  6. Step 6: Final answer
    x = 91,234.13

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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.