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Finding the Fourth Proportional to 172,939.50, 238,660.16 and 97,488

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Solution

The fourth proportional to 172,939.50, 238,660.16 and 97,488 is: 134,535.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,939.50 : 238,660.16 = 97,488 : x
  2. Step 2: Convert to fraction form
    172,939.50/238,660.16 = 97,488/x
  3. Step 3: Cross multiply
    172,939.50x = 238,660.16 × 97,488
  4. Step 4: Simplify right side
    172,939.50x = 23,266,501,678.08
  5. Step 5: Solve for x
    x = 23,266,501,678.08/172,939.50
  6. Step 6: Final answer
    x = 134,535.50

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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.