Home / 143,276.70-197,717.88-79,612.86

Finding the Fourth Proportional to 143,276.70, 197,717.88 and 79,612.86

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Solution

The fourth proportional to 143,276.70, 197,717.88 and 79,612.86 is: 109,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,276.70 : 197,717.88 = 79,612.86 : x
  2. Step 2: Convert to fraction form
    143,276.70/197,717.88 = 79,612.86/x
  3. Step 3: Cross multiply
    143,276.70x = 197,717.88 × 79,612.86
  4. Step 4: Simplify right side
    143,276.70x = 15,740,885,899.94
  5. Step 5: Solve for x
    x = 15,740,885,899.94/143,276.70
  6. Step 6: Final answer
    x = 109,863.54

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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.