Home / 143,276.67-197,717.88-79,612.83

Finding the Fourth Proportional to 143,276.67, 197,717.88 and 79,612.83

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Solution

The fourth proportional to 143,276.67, 197,717.88 and 79,612.83 is: 109,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,276.67 : 197,717.88 = 79,612.83 : x
  2. Step 2: Convert to fraction form
    143,276.67/197,717.88 = 79,612.83/x
  3. Step 3: Cross multiply
    143,276.67x = 197,717.88 × 79,612.83
  4. Step 4: Simplify right side
    143,276.67x = 15,740,879,968.40
  5. Step 5: Solve for x
    x = 15,740,879,968.40/143,276.67
  6. Step 6: Final answer
    x = 109,863.52

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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.