Home / 223,046.75-307,804.79-121,072.16

Finding the Fourth Proportional to 223,046.75, 307,804.79 and 121,072.16

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Solution

The fourth proportional to 223,046.75, 307,804.79 and 121,072.16 is: 167,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,046.75 : 307,804.79 = 121,072.16 : x
  2. Step 2: Convert to fraction form
    223,046.75/307,804.79 = 121,072.16/x
  3. Step 3: Cross multiply
    223,046.75x = 307,804.79 × 121,072.16
  4. Step 4: Simplify right side
    223,046.75x = 37,266,589,547.30
  5. Step 5: Solve for x
    x = 37,266,589,547.30/223,046.75
  6. Step 6: Final answer
    x = 167,079.72

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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.