Home / 155,508.78-214,405.94-101,708.58

Finding the Fourth Proportional to 155,508.78, 214,405.94 and 101,708.58

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Solution

The fourth proportional to 155,508.78, 214,405.94 and 101,708.58 is: 140,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,508.78 : 214,405.94 = 101,708.58 : x
  2. Step 2: Convert to fraction form
    155,508.78/214,405.94 = 101,708.58/x
  3. Step 3: Cross multiply
    155,508.78x = 214,405.94 × 101,708.58
  4. Step 4: Simplify right side
    155,508.78x = 21,806,923,955.24
  5. Step 5: Solve for x
    x = 21,806,923,955.24/155,508.78
  6. Step 6: Final answer
    x = 140,229.54

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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.