Home / 121,123.90-167,149.34-67,408.92

Finding the Fourth Proportional to 121,123.90, 167,149.34 and 67,408.92

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Solution

The fourth proportional to 121,123.90, 167,149.34 and 67,408.92 is: 93,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.90 : 167,149.34 = 67,408.92 : x
  2. Step 2: Convert to fraction form
    121,123.90/167,149.34 = 67,408.92/x
  3. Step 3: Cross multiply
    121,123.90x = 167,149.34 × 67,408.92
  4. Step 4: Simplify right side
    121,123.90x = 11,267,357,203.32
  5. Step 5: Solve for x
    x = 11,267,357,203.32/121,123.90
  6. Step 6: Final answer
    x = 93,023.40

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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.