Home / 172,840.10-259,216.95-66,200.90

Finding the Fourth Proportional to 172,840.10, 259,216.95 and 66,200.90

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Solution

The fourth proportional to 172,840.10, 259,216.95 and 66,200.90 is: 99,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,840.10 : 259,216.95 = 66,200.90 : x
  2. Step 2: Convert to fraction form
    172,840.10/259,216.95 = 66,200.90/x
  3. Step 3: Cross multiply
    172,840.10x = 259,216.95 × 66,200.90
  4. Step 4: Simplify right side
    172,840.10x = 17,160,395,385.26
  5. Step 5: Solve for x
    x = 17,160,395,385.26/172,840.10
  6. Step 6: Final answer
    x = 99,284.80

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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.