Home / 117,025.25-161,500.65-71,705.75

Finding the Fourth Proportional to 117,025.25, 161,500.65 and 71,705.75

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Solution

The fourth proportional to 117,025.25, 161,500.65 and 71,705.75 is: 98,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,025.25 : 161,500.65 = 71,705.75 : x
  2. Step 2: Convert to fraction form
    117,025.25/161,500.65 = 71,705.75/x
  3. Step 3: Cross multiply
    117,025.25x = 161,500.65 × 71,705.75
  4. Step 4: Simplify right side
    117,025.25x = 11,580,524,157.34
  5. Step 5: Solve for x
    x = 11,580,524,157.34/117,025.25
  6. Step 6: Final answer
    x = 98,957.49

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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.