Home / 113,529.20-170,423.40-66,808.40

Finding the Fourth Proportional to 113,529.20, 170,423.40 and 66,808.40

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Solution

The fourth proportional to 113,529.20, 170,423.40 and 66,808.40 is: 100,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.20 : 170,423.40 = 66,808.40 : x
  2. Step 2: Convert to fraction form
    113,529.20/170,423.40 = 66,808.40/x
  3. Step 3: Cross multiply
    113,529.20x = 170,423.40 × 66,808.40
  4. Step 4: Simplify right side
    113,529.20x = 11,385,714,676.56
  5. Step 5: Solve for x
    x = 11,385,714,676.56/113,529.20
  6. Step 6: Final answer
    x = 100,288.87

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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.