Home / 155,930.45-215,134.90-95,438.03

Finding the Fourth Proportional to 155,930.45, 215,134.90 and 95,438.03

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Solution

The fourth proportional to 155,930.45, 215,134.90 and 95,438.03 is: 131,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,930.45 : 215,134.90 = 95,438.03 : x
  2. Step 2: Convert to fraction form
    155,930.45/215,134.90 = 95,438.03/x
  3. Step 3: Cross multiply
    155,930.45x = 215,134.90 × 95,438.03
  4. Step 4: Simplify right side
    155,930.45x = 20,532,050,563.06
  5. Step 5: Solve for x
    x = 20,532,050,563.06/155,930.45
  6. Step 6: Final answer
    x = 131,674.41

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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.