Home / 120,569.12-166,385.09-66,852.75

Finding the Fourth Proportional to 120,569.12, 166,385.09 and 66,852.75

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Solution

The fourth proportional to 120,569.12, 166,385.09 and 66,852.75 is: 92,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.12 : 166,385.09 = 66,852.75 : x
  2. Step 2: Convert to fraction form
    120,569.12/166,385.09 = 66,852.75/x
  3. Step 3: Cross multiply
    120,569.12x = 166,385.09 × 66,852.75
  4. Step 4: Simplify right side
    120,569.12x = 11,123,300,992.63
  5. Step 5: Solve for x
    x = 11,123,300,992.63/120,569.12
  6. Step 6: Final answer
    x = 92,256.64

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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.