Home / 223,410.15-308,305.44-121,435.61

Finding the Fourth Proportional to 223,410.15, 308,305.44 and 121,435.61

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Solution

The fourth proportional to 223,410.15, 308,305.44 and 121,435.61 is: 167,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,410.15 : 308,305.44 = 121,435.61 : x
  2. Step 2: Convert to fraction form
    223,410.15/308,305.44 = 121,435.61/x
  3. Step 3: Cross multiply
    223,410.15x = 308,305.44 × 121,435.61
  4. Step 4: Simplify right side
    223,410.15x = 37,439,257,631.19
  5. Step 5: Solve for x
    x = 37,439,257,631.19/223,410.15
  6. Step 6: Final answer
    x = 167,580.83

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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.