Home / 121,479.30-167,640.24-67,031.94

Finding the Fourth Proportional to 121,479.30, 167,640.24 and 67,031.94

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Solution

The fourth proportional to 121,479.30, 167,640.24 and 67,031.94 is: 92,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479.30 : 167,640.24 = 67,031.94 : x
  2. Step 2: Convert to fraction form
    121,479.30/167,640.24 = 67,031.94/x
  3. Step 3: Cross multiply
    121,479.30x = 167,640.24 × 67,031.94
  4. Step 4: Simplify right side
    121,479.30x = 11,237,250,509.27
  5. Step 5: Solve for x
    x = 11,237,250,509.27/121,479.30
  6. Step 6: Final answer
    x = 92,503.42

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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.