Home / 214,617.36-296,157.60-129,781.20

Finding the Fourth Proportional to 214,617.36, 296,157.60 and 129,781.20

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Solution

The fourth proportional to 214,617.36, 296,157.60 and 129,781.20 is: 179,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,617.36 : 296,157.60 = 129,781.20 : x
  2. Step 2: Convert to fraction form
    214,617.36/296,157.60 = 129,781.20/x
  3. Step 3: Cross multiply
    214,617.36x = 296,157.60 × 129,781.20
  4. Step 4: Simplify right side
    214,617.36x = 38,435,688,717.12
  5. Step 5: Solve for x
    x = 38,435,688,717.12/214,617.36
  6. Step 6: Final answer
    x = 179,089.37

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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.