Home / 202,208.60-279,046.06-111,565.36

Finding the Fourth Proportional to 202,208.60, 279,046.06 and 111,565.36

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Solution

The fourth proportional to 202,208.60, 279,046.06 and 111,565.36 is: 153,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,208.60 : 279,046.06 = 111,565.36 : x
  2. Step 2: Convert to fraction form
    202,208.60/279,046.06 = 111,565.36/x
  3. Step 3: Cross multiply
    202,208.60x = 279,046.06 × 111,565.36
  4. Step 4: Simplify right side
    202,208.60x = 31,131,874,140.48
  5. Step 5: Solve for x
    x = 31,131,874,140.48/202,208.60
  6. Step 6: Final answer
    x = 153,959.20

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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.