Home / 151,943.46-209,648.30-87,408.74

Finding the Fourth Proportional to 151,943.46, 209,648.30 and 87,408.74

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Solution

The fourth proportional to 151,943.46, 209,648.30 and 87,408.74 is: 120,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,943.46 : 209,648.30 = 87,408.74 : x
  2. Step 2: Convert to fraction form
    151,943.46/209,648.30 = 87,408.74/x
  3. Step 3: Cross multiply
    151,943.46x = 209,648.30 × 87,408.74
  4. Step 4: Simplify right side
    151,943.46x = 18,325,092,260.86
  5. Step 5: Solve for x
    x = 18,325,092,260.86/151,943.46
  6. Step 6: Final answer
    x = 120,604.68

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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.