Home / 142,819.92-197,083.67-79,153.92

Finding the Fourth Proportional to 142,819.92, 197,083.67 and 79,153.92

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Solution

The fourth proportional to 142,819.92, 197,083.67 and 79,153.92 is: 109,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,819.92 : 197,083.67 = 79,153.92 : x
  2. Step 2: Convert to fraction form
    142,819.92/197,083.67 = 79,153.92/x
  3. Step 3: Cross multiply
    142,819.92x = 197,083.67 × 79,153.92
  4. Step 4: Simplify right side
    142,819.92x = 15,599,944,652.72
  5. Step 5: Solve for x
    x = 15,599,944,652.72/142,819.92
  6. Step 6: Final answer
    x = 109,228.07

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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.