Home / 173,905.10-260,857.65-85,331.60

Finding the Fourth Proportional to 173,905.10, 260,857.65 and 85,331.60

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Solution

The fourth proportional to 173,905.10, 260,857.65 and 85,331.60 is: 127,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,905.10 : 260,857.65 = 85,331.60 : x
  2. Step 2: Convert to fraction form
    173,905.10/260,857.65 = 85,331.60/x
  3. Step 3: Cross multiply
    173,905.10x = 260,857.65 × 85,331.60
  4. Step 4: Simplify right side
    173,905.10x = 22,259,400,646.74
  5. Step 5: Solve for x
    x = 22,259,400,646.74/173,905.10
  6. Step 6: Final answer
    x = 127,997.40

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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.