Home / 123,214.50-170,036.07-66,625.86

Finding the Fourth Proportional to 123,214.50, 170,036.07 and 66,625.86

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Solution

The fourth proportional to 123,214.50, 170,036.07 and 66,625.86 is: 91,943.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,214.50 : 170,036.07 = 66,625.86 : x
  2. Step 2: Convert to fraction form
    123,214.50/170,036.07 = 66,625.86/x
  3. Step 3: Cross multiply
    123,214.50x = 170,036.07 × 66,625.86
  4. Step 4: Simplify right side
    123,214.50x = 11,328,799,394.77
  5. Step 5: Solve for x
    x = 11,328,799,394.77/123,214.50
  6. Step 6: Final answer
    x = 91,943.72

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1.5x scale

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.