Home / 121,311.51-167,408.19-67,598.79

Finding the Fourth Proportional to 121,311.51, 167,408.19 and 67,598.79

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Solution

The fourth proportional to 121,311.51, 167,408.19 and 67,598.79 is: 93,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311.51 : 167,408.19 = 67,598.79 : x
  2. Step 2: Convert to fraction form
    121,311.51/167,408.19 = 67,598.79/x
  3. Step 3: Cross multiply
    121,311.51x = 167,408.19 × 67,598.79
  4. Step 4: Simplify right side
    121,311.51x = 11,316,591,080.09
  5. Step 5: Solve for x
    x = 11,316,591,080.09/121,311.51
  6. Step 6: Final answer
    x = 93,285.39

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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.