Home / 120,722.24-166,812.96-93,934.40

Finding the Fourth Proportional to 120,722.24, 166,812.96 and 93,934.40

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Solution

The fourth proportional to 120,722.24, 166,812.96 and 93,934.40 is: 129,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,722.24 : 166,812.96 = 93,934.40 : x
  2. Step 2: Convert to fraction form
    120,722.24/166,812.96 = 93,934.40/x
  3. Step 3: Cross multiply
    120,722.24x = 166,812.96 × 93,934.40
  4. Step 4: Simplify right side
    120,722.24x = 15,669,475,309.82
  5. Step 5: Solve for x
    x = 15,669,475,309.82/120,722.24
  6. Step 6: Final answer
    x = 129,797.75

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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.