Home / 120,980.28-166,904.84-69,983.55

Finding the Fourth Proportional to 120,980.28, 166,904.84 and 69,983.55

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Solution

The fourth proportional to 120,980.28, 166,904.84 and 69,983.55 is: 96,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,980.28 : 166,904.84 = 69,983.55 : x
  2. Step 2: Convert to fraction form
    120,980.28/166,904.84 = 69,983.55/x
  3. Step 3: Cross multiply
    120,980.28x = 166,904.84 × 69,983.55
  4. Step 4: Simplify right side
    120,980.28x = 11,680,592,865.46
  5. Step 5: Solve for x
    x = 11,680,592,865.46/120,980.28
  6. Step 6: Final answer
    x = 96,549.56

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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.