Home / 131,645.48-197,480.22-42,876.20

Finding the Fourth Proportional to 131,645.48, 197,480.22 and 42,876.20

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Solution

The fourth proportional to 131,645.48, 197,480.22 and 42,876.20 is: 64,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,645.48 : 197,480.22 = 42,876.20 : x
  2. Step 2: Convert to fraction form
    131,645.48/197,480.22 = 42,876.20/x
  3. Step 3: Cross multiply
    131,645.48x = 197,480.22 × 42,876.20
  4. Step 4: Simplify right side
    131,645.48x = 8,467,201,408.76
  5. Step 5: Solve for x
    x = 8,467,201,408.76/131,645.48
  6. Step 6: Final answer
    x = 64,318.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.