Home / 143,350.03-197,823.78-78,823.43

Finding the Fourth Proportional to 143,350.03, 197,823.78 and 78,823.43

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Solution

The fourth proportional to 143,350.03, 197,823.78 and 78,823.43 is: 108,776.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,350.03 : 197,823.78 = 78,823.43 : x
  2. Step 2: Convert to fraction form
    143,350.03/197,823.78 = 78,823.43/x
  3. Step 3: Cross multiply
    143,350.03x = 197,823.78 × 78,823.43
  4. Step 4: Simplify right side
    143,350.03x = 15,593,148,875.17
  5. Step 5: Solve for x
    x = 15,593,148,875.17/143,350.03
  6. Step 6: Final answer
    x = 108,776.74

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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.