Home / 201,895.50-278,621.55-112,477.26

Finding the Fourth Proportional to 201,895.50, 278,621.55 and 112,477.26

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Solution

The fourth proportional to 201,895.50, 278,621.55 and 112,477.26 is: 155,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895.50 : 278,621.55 = 112,477.26 : x
  2. Step 2: Convert to fraction form
    201,895.50/278,621.55 = 112,477.26/x
  3. Step 3: Cross multiply
    201,895.50x = 278,621.55 × 112,477.26
  4. Step 4: Simplify right side
    201,895.50x = 31,338,588,520.95
  5. Step 5: Solve for x
    x = 31,338,588,520.95/201,895.50
  6. Step 6: Final answer
    x = 155,221.83

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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.