Home / 143,635.54-198,031.78-117,697.66

Finding the Fourth Proportional to 143,635.54, 198,031.78 and 117,697.66

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Solution

The fourth proportional to 143,635.54, 198,031.78 and 117,697.66 is: 162,270.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,635.54 : 198,031.78 = 117,697.66 : x
  2. Step 2: Convert to fraction form
    143,635.54/198,031.78 = 117,697.66/x
  3. Step 3: Cross multiply
    143,635.54x = 198,031.78 × 117,697.66
  4. Step 4: Simplify right side
    143,635.54x = 23,307,877,111.63
  5. Step 5: Solve for x
    x = 23,307,877,111.63/143,635.54
  6. Step 6: Final answer
    x = 162,270.96

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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.