Home / 201,487.09-278,021.32-116,587.75

Finding the Fourth Proportional to 201,487.09, 278,021.32 and 116,587.75

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Solution

The fourth proportional to 201,487.09, 278,021.32 and 116,587.75 is: 160,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,487.09 : 278,021.32 = 116,587.75 : x
  2. Step 2: Convert to fraction form
    201,487.09/278,021.32 = 116,587.75/x
  3. Step 3: Cross multiply
    201,487.09x = 278,021.32 × 116,587.75
  4. Step 4: Simplify right side
    201,487.09x = 32,413,880,150.83
  5. Step 5: Solve for x
    x = 32,413,880,150.83/201,487.09
  6. Step 6: Final answer
    x = 160,873.24

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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.