Home / 120,658.96-166,529.36-66,961.23

Finding the Fourth Proportional to 120,658.96, 166,529.36 and 66,961.23

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Solution

The fourth proportional to 120,658.96, 166,529.36 and 66,961.23 is: 92,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,658.96 : 166,529.36 = 66,961.23 : x
  2. Step 2: Convert to fraction form
    120,658.96/166,529.36 = 66,961.23/x
  3. Step 3: Cross multiply
    120,658.96x = 166,529.36 × 66,961.23
  4. Step 4: Simplify right side
    120,658.96x = 11,151,010,776.71
  5. Step 5: Solve for x
    x = 11,151,010,776.71/120,658.96
  6. Step 6: Final answer
    x = 92,417.59

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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.