Home / 143,302.50-197,757.72-79,655.40

Finding the Fourth Proportional to 143,302.50, 197,757.72 and 79,655.40

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Solution

The fourth proportional to 143,302.50, 197,757.72 and 79,655.40 is: 109,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,302.50 : 197,757.72 = 79,655.40 : x
  2. Step 2: Convert to fraction form
    143,302.50/197,757.72 = 79,655.40/x
  3. Step 3: Cross multiply
    143,302.50x = 197,757.72 × 79,655.40
  4. Step 4: Simplify right side
    143,302.50x = 15,752,470,289.69
  5. Step 5: Solve for x
    x = 15,752,470,289.69/143,302.50
  6. Step 6: Final answer
    x = 109,924.60

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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.