Home / 123,938.78-171,035.08-70,234.02

Finding the Fourth Proportional to 123,938.78, 171,035.08 and 70,234.02

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Solution

The fourth proportional to 123,938.78, 171,035.08 and 70,234.02 is: 96,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,938.78 : 171,035.08 = 70,234.02 : x
  2. Step 2: Convert to fraction form
    123,938.78/171,035.08 = 70,234.02/x
  3. Step 3: Cross multiply
    123,938.78x = 171,035.08 × 70,234.02
  4. Step 4: Simplify right side
    123,938.78x = 12,012,481,229.42
  5. Step 5: Solve for x
    x = 12,012,481,229.42/123,938.78
  6. Step 6: Final answer
    x = 96,922.70

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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.