Home / 223,794.21-308,839.95-121,822.61

Finding the Fourth Proportional to 223,794.21, 308,839.95 and 121,822.61

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Solution

The fourth proportional to 223,794.21, 308,839.95 and 121,822.61 is: 168,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,794.21 : 308,839.95 = 121,822.61 : x
  2. Step 2: Convert to fraction form
    223,794.21/308,839.95 = 121,822.61/x
  3. Step 3: Cross multiply
    223,794.21x = 308,839.95 × 121,822.61
  4. Step 4: Simplify right side
    223,794.21x = 37,623,688,781.27
  5. Step 5: Solve for x
    x = 37,623,688,781.27/223,794.21
  6. Step 6: Final answer
    x = 168,117.35

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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.