Home / 202,363.25-279,261.64-111,719.36

Finding the Fourth Proportional to 202,363.25, 279,261.64 and 111,719.36

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Solution

The fourth proportional to 202,363.25, 279,261.64 and 111,719.36 is: 154,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,363.25 : 279,261.64 = 111,719.36 : x
  2. Step 2: Convert to fraction form
    202,363.25/279,261.64 = 111,719.36/x
  3. Step 3: Cross multiply
    202,363.25x = 279,261.64 × 111,719.36
  4. Step 4: Simplify right side
    202,363.25x = 31,198,931,981.34
  5. Step 5: Solve for x
    x = 31,198,931,981.34/202,363.25
  6. Step 6: Final answer
    x = 154,172.91

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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.