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Finding the Fourth Proportional to 120,301.36, 166,019.79 and 69,310.08

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Solution

The fourth proportional to 120,301.36, 166,019.79 and 69,310.08 is: 95,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,301.36 : 166,019.79 = 69,310.08 : x
  2. Step 2: Convert to fraction form
    120,301.36/166,019.79 = 69,310.08/x
  3. Step 3: Cross multiply
    120,301.36x = 166,019.79 × 69,310.08
  4. Step 4: Simplify right side
    120,301.36x = 11,506,844,926.48
  5. Step 5: Solve for x
    x = 11,506,844,926.48/120,301.36
  6. Step 6: Final answer
    x = 95,650.16

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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.