Home / 220,712.36-304,561.98-123,894.05

Finding the Fourth Proportional to 220,712.36, 304,561.98 and 123,894.05

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Solution

The fourth proportional to 220,712.36, 304,561.98 and 123,894.05 is: 170,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,712.36 : 304,561.98 = 123,894.05 : x
  2. Step 2: Convert to fraction form
    220,712.36/304,561.98 = 123,894.05/x
  3. Step 3: Cross multiply
    220,712.36x = 304,561.98 × 123,894.05
  4. Step 4: Simplify right side
    220,712.36x = 37,733,415,655.41
  5. Step 5: Solve for x
    x = 37,733,415,655.41/220,712.36
  6. Step 6: Final answer
    x = 170,961.95

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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.