Home / 120,618.92-166,440.30-69,631.45

Finding the Fourth Proportional to 120,618.92, 166,440.30 and 69,631.45

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Solution

The fourth proportional to 120,618.92, 166,440.30 and 69,631.45 is: 96,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,618.92 : 166,440.30 = 69,631.45 : x
  2. Step 2: Convert to fraction form
    120,618.92/166,440.30 = 69,631.45/x
  3. Step 3: Cross multiply
    120,618.92x = 166,440.30 × 69,631.45
  4. Step 4: Simplify right side
    120,618.92x = 11,589,478,595.23
  5. Step 5: Solve for x
    x = 11,589,478,595.23/120,618.92
  6. Step 6: Final answer
    x = 96,083.42

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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.