Home / 142,925.33-197,230.20-79,261.76

Finding the Fourth Proportional to 142,925.33, 197,230.20 and 79,261.76

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Solution

The fourth proportional to 142,925.33, 197,230.20 and 79,261.76 is: 109,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,925.33 : 197,230.20 = 79,261.76 : x
  2. Step 2: Convert to fraction form
    142,925.33/197,230.20 = 79,261.76/x
  3. Step 3: Cross multiply
    142,925.33x = 197,230.20 × 79,261.76
  4. Step 4: Simplify right side
    142,925.33x = 15,632,812,777.15
  5. Step 5: Solve for x
    x = 15,632,812,777.15/142,925.33
  6. Step 6: Final answer
    x = 109,377.48

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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.