Home / 117,479.68-162,122.11-63,764.72

Finding the Fourth Proportional to 117,479.68, 162,122.11 and 63,764.72

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Solution

The fourth proportional to 117,479.68, 162,122.11 and 63,764.72 is: 87,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479.68 : 162,122.11 = 63,764.72 : x
  2. Step 2: Convert to fraction form
    117,479.68/162,122.11 = 63,764.72/x
  3. Step 3: Cross multiply
    117,479.68x = 162,122.11 × 63,764.72
  4. Step 4: Simplify right side
    117,479.68x = 10,337,670,587.89
  5. Step 5: Solve for x
    x = 10,337,670,587.89/117,479.68
  6. Step 6: Final answer
    x = 87,995.39

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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.