Home / 202,178.36-279,005.32-111,539.96

Finding the Fourth Proportional to 202,178.36, 279,005.32 and 111,539.96

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Solution

The fourth proportional to 202,178.36, 279,005.32 and 111,539.96 is: 153,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,178.36 : 279,005.32 = 111,539.96 : x
  2. Step 2: Convert to fraction form
    202,178.36/279,005.32 = 111,539.96/x
  3. Step 3: Cross multiply
    202,178.36x = 279,005.32 × 111,539.96
  4. Step 4: Simplify right side
    202,178.36x = 31,120,242,232.59
  5. Step 5: Solve for x
    x = 31,120,242,232.59/202,178.36
  6. Step 6: Final answer
    x = 153,924.69

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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.