Home / 113,994.20-170,991.30-72,003.80

Finding the Fourth Proportional to 113,994.20, 170,991.30 and 72,003.80

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Solution

The fourth proportional to 113,994.20, 170,991.30 and 72,003.80 is: 108,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,994.20 : 170,991.30 = 72,003.80 : x
  2. Step 2: Convert to fraction form
    113,994.20/170,991.30 = 72,003.80/x
  3. Step 3: Cross multiply
    113,994.20x = 170,991.30 × 72,003.80
  4. Step 4: Simplify right side
    113,994.20x = 12,312,023,366.94
  5. Step 5: Solve for x
    x = 12,312,023,366.94/113,994.20
  6. Step 6: Final answer
    x = 108,005.70

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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.