Home / 120,409.26-166,157.10-69,419.34

Finding the Fourth Proportional to 120,409.26, 166,157.10 and 69,419.34

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Solution

The fourth proportional to 120,409.26, 166,157.10 and 69,419.34 is: 95,794.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,409.26 : 166,157.10 = 69,419.34 : x
  2. Step 2: Convert to fraction form
    120,409.26/166,157.10 = 69,419.34/x
  3. Step 3: Cross multiply
    120,409.26x = 166,157.10 × 69,419.34
  4. Step 4: Simplify right side
    120,409.26x = 11,534,516,218.31
  5. Step 5: Solve for x
    x = 11,534,516,218.31/120,409.26
  6. Step 6: Final answer
    x = 95,794.26

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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.