Home / 151,471.08-209,039.22-83,487.96

Finding the Fourth Proportional to 151,471.08, 209,039.22 and 83,487.96

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Solution

The fourth proportional to 151,471.08, 209,039.22 and 83,487.96 is: 115,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,471.08 : 209,039.22 = 83,487.96 : x
  2. Step 2: Convert to fraction form
    151,471.08/209,039.22 = 83,487.96/x
  3. Step 3: Cross multiply
    151,471.08x = 209,039.22 × 83,487.96
  4. Step 4: Simplify right side
    151,471.08x = 17,452,258,037.79
  5. Step 5: Solve for x
    x = 17,452,258,037.79/151,471.08
  6. Step 6: Final answer
    x = 115,218.42

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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.