Home / 131,984.59-182,136.36-74,622.92

Finding the Fourth Proportional to 131,984.59, 182,136.36 and 74,622.92

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Solution

The fourth proportional to 131,984.59, 182,136.36 and 74,622.92 is: 102,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,984.59 : 182,136.36 = 74,622.92 : x
  2. Step 2: Convert to fraction form
    131,984.59/182,136.36 = 74,622.92/x
  3. Step 3: Cross multiply
    131,984.59x = 182,136.36 × 74,622.92
  4. Step 4: Simplify right side
    131,984.59x = 13,591,546,513.86
  5. Step 5: Solve for x
    x = 13,591,546,513.86/131,984.59
  6. Step 6: Final answer
    x = 102,978.29

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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.