Home / 121,211.49-167,271.17-70,909.41

Finding the Fourth Proportional to 121,211.49, 167,271.17 and 70,909.41

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Solution

The fourth proportional to 121,211.49, 167,271.17 and 70,909.41 is: 97,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.49 : 167,271.17 = 70,909.41 : x
  2. Step 2: Convert to fraction form
    121,211.49/167,271.17 = 70,909.41/x
  3. Step 3: Cross multiply
    121,211.49x = 167,271.17 × 70,909.41
  4. Step 4: Simplify right side
    121,211.49x = 11,861,099,620.16
  5. Step 5: Solve for x
    x = 11,861,099,620.16/121,211.49
  6. Step 6: Final answer
    x = 97,854.58

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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.