Home / 157,245.12-216,998.32-85,625.12

Finding the Fourth Proportional to 157,245.12, 216,998.32 and 85,625.12

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Solution

The fourth proportional to 157,245.12, 216,998.32 and 85,625.12 is: 118,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,245.12 : 216,998.32 = 85,625.12 : x
  2. Step 2: Convert to fraction form
    157,245.12/216,998.32 = 85,625.12/x
  3. Step 3: Cross multiply
    157,245.12x = 216,998.32 × 85,625.12
  4. Step 4: Simplify right side
    157,245.12x = 18,580,507,189.80
  5. Step 5: Solve for x
    x = 18,580,507,189.80/157,245.12
  6. Step 6: Final answer
    x = 118,162.70

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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.