Home / 201,572.22-278,171.75-115,529.34

Finding the Fourth Proportional to 201,572.22, 278,171.75 and 115,529.34

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Solution

The fourth proportional to 201,572.22, 278,171.75 and 115,529.34 is: 159,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,572.22 : 278,171.75 = 115,529.34 : x
  2. Step 2: Convert to fraction form
    201,572.22/278,171.75 = 115,529.34/x
  3. Step 3: Cross multiply
    201,572.22x = 278,171.75 × 115,529.34
  4. Step 4: Simplify right side
    201,572.22x = 32,136,998,684.15
  5. Step 5: Solve for x
    x = 32,136,998,684.15/201,572.22
  6. Step 6: Final answer
    x = 159,431.69

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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.