Home / 203,411.47-280,724.40-112,795.85

Finding the Fourth Proportional to 203,411.47, 280,724.40 and 112,795.85

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Solution

The fourth proportional to 203,411.47, 280,724.40 and 112,795.85 is: 155,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,411.47 : 280,724.40 = 112,795.85 : x
  2. Step 2: Convert to fraction form
    203,411.47/280,724.40 = 112,795.85/x
  3. Step 3: Cross multiply
    203,411.47x = 280,724.40 × 112,795.85
  4. Step 4: Simplify right side
    203,411.47x = 31,664,545,910.12
  5. Step 5: Solve for x
    x = 31,664,545,910.12/203,411.47
  6. Step 6: Final answer
    x = 155,667.46

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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.