Home / 142,993.98-197,355.24-79,352.28

Finding the Fourth Proportional to 142,993.98, 197,355.24 and 79,352.28

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Solution

The fourth proportional to 142,993.98, 197,355.24 and 79,352.28 is: 109,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,993.98 : 197,355.24 = 79,352.28 : x
  2. Step 2: Convert to fraction form
    142,993.98/197,355.24 = 79,352.28/x
  3. Step 3: Cross multiply
    142,993.98x = 197,355.24 × 79,352.28
  4. Step 4: Simplify right side
    142,993.98x = 15,660,588,263.95
  5. Step 5: Solve for x
    x = 15,660,588,263.95/142,993.98
  6. Step 6: Final answer
    x = 109,519.21

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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.