Home / 202,764.19-279,811.66-112,118.16

Finding the Fourth Proportional to 202,764.19, 279,811.66 and 112,118.16

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Solution

The fourth proportional to 202,764.19, 279,811.66 and 112,118.16 is: 154,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,764.19 : 279,811.66 = 112,118.16 : x
  2. Step 2: Convert to fraction form
    202,764.19/279,811.66 = 112,118.16/x
  3. Step 3: Cross multiply
    202,764.19x = 279,811.66 × 112,118.16
  4. Step 4: Simplify right side
    202,764.19x = 31,371,968,465.75
  5. Step 5: Solve for x
    x = 31,371,968,465.75/202,764.19
  6. Step 6: Final answer
    x = 154,721.44

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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.