Home / 197,431.39-272,455.34-106,787.36

Finding the Fourth Proportional to 197,431.39, 272,455.34 and 106,787.36

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Solution

The fourth proportional to 197,431.39, 272,455.34 and 106,787.36 is: 147,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,431.39 : 272,455.34 = 106,787.36 : x
  2. Step 2: Convert to fraction form
    197,431.39/272,455.34 = 106,787.36/x
  3. Step 3: Cross multiply
    197,431.39x = 272,455.34 × 106,787.36
  4. Step 4: Simplify right side
    197,431.39x = 29,094,785,114.23
  5. Step 5: Solve for x
    x = 29,094,785,114.23/197,431.39
  6. Step 6: Final answer
    x = 147,366.57

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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.