Home / 121,123.52-167,148.83-67,408.52

Finding the Fourth Proportional to 121,123.52, 167,148.83 and 67,408.52

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Solution

The fourth proportional to 121,123.52, 167,148.83 and 67,408.52 is: 93,022.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.52 : 167,148.83 = 67,408.52 : x
  2. Step 2: Convert to fraction form
    121,123.52/167,148.83 = 67,408.52/x
  3. Step 3: Cross multiply
    121,123.52x = 167,148.83 × 67,408.52
  4. Step 4: Simplify right side
    121,123.52x = 11,267,255,457.25
  5. Step 5: Solve for x
    x = 11,267,255,457.25/121,123.52
  6. Step 6: Final answer
    x = 93,022.85

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1.5x scale

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.