Home / 157,612.10-217,504.38-85,992.18

Finding the Fourth Proportional to 157,612.10, 217,504.38 and 85,992.18

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Solution

The fourth proportional to 157,612.10, 217,504.38 and 85,992.18 is: 118,669.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,612.10 : 217,504.38 = 85,992.18 : x
  2. Step 2: Convert to fraction form
    157,612.10/217,504.38 = 85,992.18/x
  3. Step 3: Cross multiply
    157,612.10x = 217,504.38 × 85,992.18
  4. Step 4: Simplify right side
    157,612.10x = 18,703,675,795.75
  5. Step 5: Solve for x
    x = 18,703,675,795.75/157,612.10
  6. Step 6: Final answer
    x = 118,669.03

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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.