Home / 120,572.04-166,391.40-66,859.32

Finding the Fourth Proportional to 120,572.04, 166,391.40 and 66,859.32

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Solution

The fourth proportional to 120,572.04, 166,391.40 and 66,859.32 is: 92,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,572.04 : 166,391.40 = 66,859.32 : x
  2. Step 2: Convert to fraction form
    120,572.04/166,391.40 = 66,859.32/x
  3. Step 3: Cross multiply
    120,572.04x = 166,391.40 × 66,859.32
  4. Step 4: Simplify right side
    120,572.04x = 11,124,815,857.85
  5. Step 5: Solve for x
    x = 11,124,815,857.85/120,572.04
  6. Step 6: Final answer
    x = 92,266.96

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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.