Home / 123,938.43-171,036.08-67,349.79

Finding the Fourth Proportional to 123,938.43, 171,036.08 and 67,349.79

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Solution

The fourth proportional to 123,938.43, 171,036.08 and 67,349.79 is: 92,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,938.43 : 171,036.08 = 67,349.79 : x
  2. Step 2: Convert to fraction form
    123,938.43/171,036.08 = 67,349.79/x
  3. Step 3: Cross multiply
    123,938.43x = 171,036.08 × 67,349.79
  4. Step 4: Simplify right side
    123,938.43x = 11,519,243,733.67
  5. Step 5: Solve for x
    x = 11,519,243,733.67/123,938.43
  6. Step 6: Final answer
    x = 92,943.28

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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.