Home / 197,470.40-272,507.92-106,826

Finding the Fourth Proportional to 197,470.40, 272,507.92 and 106,826

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Solution

The fourth proportional to 197,470.40, 272,507.92 and 106,826 is: 147,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,470.40 : 272,507.92 = 106,826 : x
  2. Step 2: Convert to fraction form
    197,470.40/272,507.92 = 106,826/x
  3. Step 3: Cross multiply
    197,470.40x = 272,507.92 × 106,826
  4. Step 4: Simplify right side
    197,470.40x = 29,110,931,061.92
  5. Step 5: Solve for x
    x = 29,110,931,061.92/197,470.40
  6. Step 6: Final answer
    x = 147,419.21

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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.