Home / 202,080.14-278,872.57-111,439.32

Finding the Fourth Proportional to 202,080.14, 278,872.57 and 111,439.32

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Solution

The fourth proportional to 202,080.14, 278,872.57 and 111,439.32 is: 153,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,080.14 : 278,872.57 = 111,439.32 : x
  2. Step 2: Convert to fraction form
    202,080.14/278,872.57 = 111,439.32/x
  3. Step 3: Cross multiply
    202,080.14x = 278,872.57 × 111,439.32
  4. Step 4: Simplify right side
    202,080.14x = 31,077,369,567.45
  5. Step 5: Solve for x
    x = 31,077,369,567.45/202,080.14
  6. Step 6: Final answer
    x = 153,787.35

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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.