Home / 220,909.91-304,837.65-124,108.51

Finding the Fourth Proportional to 220,909.91, 304,837.65 and 124,108.51

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Solution

The fourth proportional to 220,909.91, 304,837.65 and 124,108.51 is: 171,259.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,909.91 : 304,837.65 = 124,108.51 : x
  2. Step 2: Convert to fraction form
    220,909.91/304,837.65 = 124,108.51/x
  3. Step 3: Cross multiply
    220,909.91x = 304,837.65 × 124,108.51
  4. Step 4: Simplify right side
    220,909.91x = 37,832,944,388.67
  5. Step 5: Solve for x
    x = 37,832,944,388.67/220,909.91
  6. Step 6: Final answer
    x = 171,259.61

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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.