Home / 131,588.25-197,402.88-42,820.80

Finding the Fourth Proportional to 131,588.25, 197,402.88 and 42,820.80

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Solution

The fourth proportional to 131,588.25, 197,402.88 and 42,820.80 is: 64,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,588.25 : 197,402.88 = 42,820.80 : x
  2. Step 2: Convert to fraction form
    131,588.25/197,402.88 = 42,820.80/x
  3. Step 3: Cross multiply
    131,588.25x = 197,402.88 × 42,820.80
  4. Step 4: Simplify right side
    131,588.25x = 8,452,949,243.90
  5. Step 5: Solve for x
    x = 8,452,949,243.90/131,588.25
  6. Step 6: Final answer
    x = 64,237.87

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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.