Home / 142,770.96-197,035.92-79,114.68

Finding the Fourth Proportional to 142,770.96, 197,035.92 and 79,114.68

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Solution

The fourth proportional to 142,770.96, 197,035.92 and 79,114.68 is: 109,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,770.96 : 197,035.92 = 79,114.68 : x
  2. Step 2: Convert to fraction form
    142,770.96/197,035.92 = 79,114.68/x
  3. Step 3: Cross multiply
    142,770.96x = 197,035.92 × 79,114.68
  4. Step 4: Simplify right side
    142,770.96x = 15,588,433,759.31
  5. Step 5: Solve for x
    x = 15,588,433,759.31/142,770.96
  6. Step 6: Final answer
    x = 109,184.91

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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.