Home / 131,522.10-197,137.35-72,400.20

Finding the Fourth Proportional to 131,522.10, 197,137.35 and 72,400.20

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Solution

The fourth proportional to 131,522.10, 197,137.35 and 72,400.20 is: 108,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,522.10 : 197,137.35 = 72,400.20 : x
  2. Step 2: Convert to fraction form
    131,522.10/197,137.35 = 72,400.20/x
  3. Step 3: Cross multiply
    131,522.10x = 197,137.35 × 72,400.20
  4. Step 4: Simplify right side
    131,522.10x = 14,272,783,567.47
  5. Step 5: Solve for x
    x = 14,272,783,567.47/131,522.10
  6. Step 6: Final answer
    x = 108,520.04

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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.