Home / 123,927.60-171,020.70-72,942.24

Finding the Fourth Proportional to 123,927.60, 171,020.70 and 72,942.24

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Solution

The fourth proportional to 123,927.60, 171,020.70 and 72,942.24 is: 100,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.60 : 171,020.70 = 72,942.24 : x
  2. Step 2: Convert to fraction form
    123,927.60/171,020.70 = 72,942.24/x
  3. Step 3: Cross multiply
    123,927.60x = 171,020.70 × 72,942.24
  4. Step 4: Simplify right side
    123,927.60x = 12,474,632,944.37
  5. Step 5: Solve for x
    x = 12,474,632,944.37/123,927.60
  6. Step 6: Final answer
    x = 100,660.65

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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.