Home / 254,112.96-381,158.52-85,622.16

Finding the Fourth Proportional to 254,112.96, 381,158.52 and 85,622.16

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Solution

The fourth proportional to 254,112.96, 381,158.52 and 85,622.16 is: 128,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,112.96 : 381,158.52 = 85,622.16 : x
  2. Step 2: Convert to fraction form
    254,112.96/381,158.52 = 85,622.16/x
  3. Step 3: Cross multiply
    254,112.96x = 381,158.52 × 85,622.16
  4. Step 4: Simplify right side
    254,112.96x = 32,635,615,784.80
  5. Step 5: Solve for x
    x = 32,635,615,784.80/254,112.96
  6. Step 6: Final answer
    x = 128,429.56

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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.