Home / 131,738.32-197,638.92-42,991.99

Finding the Fourth Proportional to 131,738.32, 197,638.92 and 42,991.99

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Solution

The fourth proportional to 131,738.32, 197,638.92 and 42,991.99 is: 64,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,738.32 : 197,638.92 = 42,991.99 : x
  2. Step 2: Convert to fraction form
    131,738.32/197,638.92 = 42,991.99/x
  3. Step 3: Cross multiply
    131,738.32x = 197,638.92 × 42,991.99
  4. Step 4: Simplify right side
    131,738.32x = 8,496,890,472.25
  5. Step 5: Solve for x
    x = 8,496,890,472.25/131,738.32
  6. Step 6: Final answer
    x = 64,498.25

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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.