Home / 143,341.52-197,818.00-79,680.38

Finding the Fourth Proportional to 143,341.52, 197,818.00 and 79,680.38

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Solution

The fourth proportional to 143,341.52, 197,818.00 and 79,680.38 is: 109,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,341.52 : 197,818.00 = 79,680.38 : x
  2. Step 2: Convert to fraction form
    143,341.52/197,818.00 = 79,680.38/x
  3. Step 3: Cross multiply
    143,341.52x = 197,818.00 × 79,680.38
  4. Step 4: Simplify right side
    143,341.52x = 15,762,212,222.55
  5. Step 5: Solve for x
    x = 15,762,212,222.55/143,341.52
  6. Step 6: Final answer
    x = 109,962.65

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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.