Home / 142,768.94-197,045.53-82,328.76

Finding the Fourth Proportional to 142,768.94, 197,045.53 and 82,328.76

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Solution

The fourth proportional to 142,768.94, 197,045.53 and 82,328.76 is: 113,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,768.94 : 197,045.53 = 82,328.76 : x
  2. Step 2: Convert to fraction form
    142,768.94/197,045.53 = 82,328.76/x
  3. Step 3: Cross multiply
    142,768.94x = 197,045.53 × 82,328.76
  4. Step 4: Simplify right side
    142,768.94x = 16,222,513,942.62
  5. Step 5: Solve for x
    x = 16,222,513,942.62/142,768.94
  6. Step 6: Final answer
    x = 113,627.76

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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.