Home / 123,214.51-170,035.90-66,625.75

Finding the Fourth Proportional to 123,214.51, 170,035.90 and 66,625.75

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Solution

The fourth proportional to 123,214.51, 170,035.90 and 66,625.75 is: 91,943.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,214.51 : 170,035.90 = 66,625.75 : x
  2. Step 2: Convert to fraction form
    123,214.51/170,035.90 = 66,625.75/x
  3. Step 3: Cross multiply
    123,214.51x = 170,035.90 × 66,625.75
  4. Step 4: Simplify right side
    123,214.51x = 11,328,769,364.43
  5. Step 5: Solve for x
    x = 11,328,769,364.43/123,214.51
  6. Step 6: Final answer
    x = 91,943.47

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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.