Home / 143,313.50-197,771.19-79,649.93

Finding the Fourth Proportional to 143,313.50, 197,771.19 and 79,649.93

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Solution

The fourth proportional to 143,313.50, 197,771.19 and 79,649.93 is: 109,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.50 : 197,771.19 = 79,649.93 : x
  2. Step 2: Convert to fraction form
    143,313.50/197,771.19 = 79,649.93/x
  3. Step 3: Cross multiply
    143,313.50x = 197,771.19 × 79,649.93
  4. Step 4: Simplify right side
    143,313.50x = 15,752,461,439.52
  5. Step 5: Solve for x
    x = 15,752,461,439.52/143,313.50
  6. Step 6: Final answer
    x = 109,916.10

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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.