Home / 208,625.35-287,902.99-113,132.12

Finding the Fourth Proportional to 208,625.35, 287,902.99 and 113,132.12

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Solution

The fourth proportional to 208,625.35, 287,902.99 and 113,132.12 is: 156,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,625.35 : 287,902.99 = 113,132.12 : x
  2. Step 2: Convert to fraction form
    208,625.35/287,902.99 = 113,132.12/x
  3. Step 3: Cross multiply
    208,625.35x = 287,902.99 × 113,132.12
  4. Step 4: Simplify right side
    208,625.35x = 32,571,075,613.04
  5. Step 5: Solve for x
    x = 32,571,075,613.04/208,625.35
  6. Step 6: Final answer
    x = 156,122.33

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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.