Home / 157,610.10-217,501.62-85,990.18

Finding the Fourth Proportional to 157,610.10, 217,501.62 and 85,990.18

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Solution

The fourth proportional to 157,610.10, 217,501.62 and 85,990.18 is: 118,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,610.10 : 217,501.62 = 85,990.18 : x
  2. Step 2: Convert to fraction form
    157,610.10/217,501.62 = 85,990.18/x
  3. Step 3: Cross multiply
    157,610.10x = 217,501.62 × 85,990.18
  4. Step 4: Simplify right side
    157,610.10x = 18,703,003,454.09
  5. Step 5: Solve for x
    x = 18,703,003,454.09/157,610.10
  6. Step 6: Final answer
    x = 118,666.27

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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.