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Finding the Fourth Proportional to 120,888.37, 166,816.17 and 69,904.40

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Solution

The fourth proportional to 120,888.37, 166,816.17 and 69,904.40 is: 96,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,888.37 : 166,816.17 = 69,904.40 : x
  2. Step 2: Convert to fraction form
    120,888.37/166,816.17 = 69,904.40/x
  3. Step 3: Cross multiply
    120,888.37x = 166,816.17 × 69,904.40
  4. Step 4: Simplify right side
    120,888.37x = 11,661,184,274.15
  5. Step 5: Solve for x
    x = 11,661,184,274.15/120,888.37
  6. Step 6: Final answer
    x = 96,462.42

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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.