Home / 143,022.59-197,371.17-79,370.63

Finding the Fourth Proportional to 143,022.59, 197,371.17 and 79,370.63

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Solution

The fourth proportional to 143,022.59, 197,371.17 and 79,370.63 is: 109,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,022.59 : 197,371.17 = 79,370.63 : x
  2. Step 2: Convert to fraction form
    143,022.59/197,371.17 = 79,370.63/x
  3. Step 3: Cross multiply
    143,022.59x = 197,371.17 × 79,370.63
  4. Step 4: Simplify right side
    143,022.59x = 15,665,473,860.02
  5. Step 5: Solve for x
    x = 15,665,473,860.02/143,022.59
  6. Step 6: Final answer
    x = 109,531.47

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1.5x scale

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.