Home / 143,005.20-197,348.04-79,344.24

Finding the Fourth Proportional to 143,005.20, 197,348.04 and 79,344.24

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Solution

The fourth proportional to 143,005.20, 197,348.04 and 79,344.24 is: 109,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,005.20 : 197,348.04 = 79,344.24 : x
  2. Step 2: Convert to fraction form
    143,005.20/197,348.04 = 79,344.24/x
  3. Step 3: Cross multiply
    143,005.20x = 197,348.04 × 79,344.24
  4. Step 4: Simplify right side
    143,005.20x = 15,658,430,249.29
  5. Step 5: Solve for x
    x = 15,658,430,249.29/143,005.20
  6. Step 6: Final answer
    x = 109,495.53

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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.