Home / 142,928.34-197,234.34-79,264.76

Finding the Fourth Proportional to 142,928.34, 197,234.34 and 79,264.76

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Solution

The fourth proportional to 142,928.34, 197,234.34 and 79,264.76 is: 109,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.34 : 197,234.34 = 79,264.76 : x
  2. Step 2: Convert to fraction form
    142,928.34/197,234.34 = 79,264.76/x
  3. Step 3: Cross multiply
    142,928.34x = 197,234.34 × 79,264.76
  4. Step 4: Simplify right side
    142,928.34x = 15,633,732,623.86
  5. Step 5: Solve for x
    x = 15,633,732,623.86/142,928.34
  6. Step 6: Final answer
    x = 109,381.61

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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.