Home / 131,491.79-197,258.43-42,724.56

Finding the Fourth Proportional to 131,491.79, 197,258.43 and 42,724.56

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Solution

The fourth proportional to 131,491.79, 197,258.43 and 42,724.56 is: 64,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,491.79 : 197,258.43 = 42,724.56 : x
  2. Step 2: Convert to fraction form
    131,491.79/197,258.43 = 42,724.56/x
  3. Step 3: Cross multiply
    131,491.79x = 197,258.43 × 42,724.56
  4. Step 4: Simplify right side
    131,491.79x = 8,427,779,628.04
  5. Step 5: Solve for x
    x = 8,427,779,628.04/131,491.79
  6. Step 6: Final answer
    x = 64,093.58

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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.