Home / 143,193.98-197,602.20-79,535.84

Finding the Fourth Proportional to 143,193.98, 197,602.20 and 79,535.84

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Solution

The fourth proportional to 143,193.98, 197,602.20 and 79,535.84 is: 109,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,193.98 : 197,602.20 = 79,535.84 : x
  2. Step 2: Convert to fraction form
    143,193.98/197,602.20 = 79,535.84/x
  3. Step 3: Cross multiply
    143,193.98x = 197,602.20 × 79,535.84
  4. Step 4: Simplify right side
    143,193.98x = 15,716,456,962.85
  5. Step 5: Solve for x
    x = 15,716,456,962.85/143,193.98
  6. Step 6: Final answer
    x = 109,756.41

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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.