Home / 155,785.85-214,732.62-121,735.17

Finding the Fourth Proportional to 155,785.85, 214,732.62 and 121,735.17

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Solution

The fourth proportional to 155,785.85, 214,732.62 and 121,735.17 is: 167,797.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,785.85 : 214,732.62 = 121,735.17 : x
  2. Step 2: Convert to fraction form
    155,785.85/214,732.62 = 121,735.17/x
  3. Step 3: Cross multiply
    155,785.85x = 214,732.62 × 121,735.17
  4. Step 4: Simplify right side
    155,785.85x = 26,140,512,000.25
  5. Step 5: Solve for x
    x = 26,140,512,000.25/155,785.85
  6. Step 6: Final answer
    x = 167,797.73

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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.