Home / 142,904.64-197,216.22-79,241.04

Finding the Fourth Proportional to 142,904.64, 197,216.22 and 79,241.04

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Solution

The fourth proportional to 142,904.64, 197,216.22 and 79,241.04 is: 109,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,904.64 : 197,216.22 = 79,241.04 : x
  2. Step 2: Convert to fraction form
    142,904.64/197,216.22 = 79,241.04/x
  3. Step 3: Cross multiply
    142,904.64x = 197,216.22 × 79,241.04
  4. Step 4: Simplify right side
    142,904.64x = 15,627,618,377.67
  5. Step 5: Solve for x
    x = 15,627,618,377.67/142,904.64
  6. Step 6: Final answer
    x = 109,356.97

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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.