Home / 143,291.46-197,747.01-79,631.94

Finding the Fourth Proportional to 143,291.46, 197,747.01 and 79,631.94

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Solution

The fourth proportional to 143,291.46, 197,747.01 and 79,631.94 is: 109,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,291.46 : 197,747.01 = 79,631.94 : x
  2. Step 2: Convert to fraction form
    143,291.46/197,747.01 = 79,631.94/x
  3. Step 3: Cross multiply
    143,291.46x = 197,747.01 × 79,631.94
  4. Step 4: Simplify right side
    143,291.46x = 15,746,978,035.50
  5. Step 5: Solve for x
    x = 15,746,978,035.50/143,291.46
  6. Step 6: Final answer
    x = 109,894.74

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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.