Home / 142,935.70-197,263.38-79,294

Finding the Fourth Proportional to 142,935.70, 197,263.38 and 79,294

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Solution

The fourth proportional to 142,935.70, 197,263.38 and 79,294 is: 109,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,935.70 : 197,263.38 = 79,294 : x
  2. Step 2: Convert to fraction form
    142,935.70/197,263.38 = 79,294/x
  3. Step 3: Cross multiply
    142,935.70x = 197,263.38 × 79,294
  4. Step 4: Simplify right side
    142,935.70x = 15,641,802,453.72
  5. Step 5: Solve for x
    x = 15,641,802,453.72/142,935.70
  6. Step 6: Final answer
    x = 109,432.44

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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.