Home / 121,207.30-167,271-67,488.91

Finding the Fourth Proportional to 121,207.30, 167,271 and 67,488.91

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Solution

The fourth proportional to 121,207.30, 167,271 and 67,488.91 is: 93,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,207.30 : 167,271 = 67,488.91 : x
  2. Step 2: Convert to fraction form
    121,207.30/167,271 = 67,488.91/x
  3. Step 3: Cross multiply
    121,207.30x = 167,271 × 67,488.91
  4. Step 4: Simplify right side
    121,207.30x = 11,288,937,464.61
  5. Step 5: Solve for x
    x = 11,288,937,464.61/121,207.30
  6. Step 6: Final answer
    x = 93,137.44

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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.