Home / 268,525.08-402,787.65-127,857.24

Finding the Fourth Proportional to 268,525.08, 402,787.65 and 127,857.24

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Solution

The fourth proportional to 268,525.08, 402,787.65 and 127,857.24 is: 191,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,525.08 : 402,787.65 = 127,857.24 : x
  2. Step 2: Convert to fraction form
    268,525.08/402,787.65 = 127,857.24/x
  3. Step 3: Cross multiply
    268,525.08x = 402,787.65 × 127,857.24
  4. Step 4: Simplify right side
    268,525.08x = 51,499,317,235.09
  5. Step 5: Solve for x
    x = 51,499,317,235.09/268,525.08
  6. Step 6: Final answer
    x = 191,785.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.