Home / 120,964.48-166,886.76-73,200.40

Finding the Fourth Proportional to 120,964.48, 166,886.76 and 73,200.40

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Solution

The fourth proportional to 120,964.48, 166,886.76 and 73,200.40 is: 100,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,964.48 : 166,886.76 = 73,200.40 : x
  2. Step 2: Convert to fraction form
    120,964.48/166,886.76 = 73,200.40/x
  3. Step 3: Cross multiply
    120,964.48x = 166,886.76 × 73,200.40
  4. Step 4: Simplify right side
    120,964.48x = 12,216,177,586.70
  5. Step 5: Solve for x
    x = 12,216,177,586.70/120,964.48
  6. Step 6: Final answer
    x = 100,989.79

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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.