Home / 202,231.12-279,076.75-111,590.90

Finding the Fourth Proportional to 202,231.12, 279,076.75 and 111,590.90

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Solution

The fourth proportional to 202,231.12, 279,076.75 and 111,590.90 is: 153,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,231.12 : 279,076.75 = 111,590.90 : x
  2. Step 2: Convert to fraction form
    202,231.12/279,076.75 = 111,590.90/x
  3. Step 3: Cross multiply
    202,231.12x = 279,076.75 × 111,590.90
  4. Step 4: Simplify right side
    202,231.12x = 31,142,426,120.29
  5. Step 5: Solve for x
    x = 31,142,426,120.29/202,231.12
  6. Step 6: Final answer
    x = 153,994.23

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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.