Home / 254,105.04-381,192.75-85,673.58

Finding the Fourth Proportional to 254,105.04, 381,192.75 and 85,673.58

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Solution

The fourth proportional to 254,105.04, 381,192.75 and 85,673.58 is: 128,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,105.04 : 381,192.75 = 85,673.58 : x
  2. Step 2: Convert to fraction form
    254,105.04/381,192.75 = 85,673.58/x
  3. Step 3: Cross multiply
    254,105.04x = 381,192.75 × 85,673.58
  4. Step 4: Simplify right side
    254,105.04x = 32,658,147,562.55
  5. Step 5: Solve for x
    x = 32,658,147,562.55/254,105.04
  6. Step 6: Final answer
    x = 128,522.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.