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Finding the Fourth Proportional to 172,687.68, 238,330.80 and 97,236

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Solution

The fourth proportional to 172,687.68, 238,330.80 and 97,236 is: 134,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,687.68 : 238,330.80 = 97,236 : x
  2. Step 2: Convert to fraction form
    172,687.68/238,330.80 = 97,236/x
  3. Step 3: Cross multiply
    172,687.68x = 238,330.80 × 97,236
  4. Step 4: Simplify right side
    172,687.68x = 23,174,333,668.80
  5. Step 5: Solve for x
    x = 23,174,333,668.80/172,687.68
  6. Step 6: Final answer
    x = 134,197.96

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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.