Home / 120,837.12-166,752.90-67,119.72

Finding the Fourth Proportional to 120,837.12, 166,752.90 and 67,119.72

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Solution

The fourth proportional to 120,837.12, 166,752.90 and 67,119.72 is: 92,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,837.12 : 166,752.90 = 67,119.72 : x
  2. Step 2: Convert to fraction form
    120,837.12/166,752.90 = 67,119.72/x
  3. Step 3: Cross multiply
    120,837.12x = 166,752.90 × 67,119.72
  4. Step 4: Simplify right side
    120,837.12x = 11,192,407,957.19
  5. Step 5: Solve for x
    x = 11,192,407,957.19/120,837.12
  6. Step 6: Final answer
    x = 92,623.92

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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.