Home / 220,210.31-303,894.23-124,736.82

Finding the Fourth Proportional to 220,210.31, 303,894.23 and 124,736.82

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Solution

The fourth proportional to 220,210.31, 303,894.23 and 124,736.82 is: 172,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,210.31 : 303,894.23 = 124,736.82 : x
  2. Step 2: Convert to fraction form
    220,210.31/303,894.23 = 124,736.82/x
  3. Step 3: Cross multiply
    220,210.31x = 303,894.23 × 124,736.82
  4. Step 4: Simplify right side
    220,210.31x = 37,906,799,242.86
  5. Step 5: Solve for x
    x = 37,906,799,242.86/220,210.31
  6. Step 6: Final answer
    x = 172,139.08

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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.