Home / 142,834.92-197,123.88-79,193.28

Finding the Fourth Proportional to 142,834.92, 197,123.88 and 79,193.28

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Solution

The fourth proportional to 142,834.92, 197,123.88 and 79,193.28 is: 109,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,834.92 : 197,123.88 = 79,193.28 : x
  2. Step 2: Convert to fraction form
    142,834.92/197,123.88 = 79,193.28/x
  3. Step 3: Cross multiply
    142,834.92x = 197,123.88 × 79,193.28
  4. Step 4: Simplify right side
    142,834.92x = 15,610,886,623.53
  5. Step 5: Solve for x
    x = 15,610,886,623.53/142,834.92
  6. Step 6: Final answer
    x = 109,293.21

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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.