Home / 120,621.24-166,348.35-75,303.42

Finding the Fourth Proportional to 120,621.24, 166,348.35 and 75,303.42

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Solution

The fourth proportional to 120,621.24, 166,348.35 and 75,303.42 is: 103,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.24 : 166,348.35 = 75,303.42 : x
  2. Step 2: Convert to fraction form
    120,621.24/166,348.35 = 75,303.42/x
  3. Step 3: Cross multiply
    120,621.24x = 166,348.35 × 75,303.42
  4. Step 4: Simplify right side
    120,621.24x = 12,526,599,666.36
  5. Step 5: Solve for x
    x = 12,526,599,666.36/120,621.24
  6. Step 6: Final answer
    x = 103,850.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.