Home / 171,336.02-256,834.49-81,220.45

Finding the Fourth Proportional to 171,336.02, 256,834.49 and 81,220.45

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Solution

The fourth proportional to 171,336.02, 256,834.49 and 81,220.45 is: 121,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,336.02 : 256,834.49 = 81,220.45 : x
  2. Step 2: Convert to fraction form
    171,336.02/256,834.49 = 81,220.45/x
  3. Step 3: Cross multiply
    171,336.02x = 256,834.49 × 81,220.45
  4. Step 4: Simplify right side
    171,336.02x = 20,860,211,805.13
  5. Step 5: Solve for x
    x = 20,860,211,805.13/171,336.02
  6. Step 6: Final answer
    x = 121,750.30

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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.