Home / 208,180.68-287,290.20-112,687.32

Finding the Fourth Proportional to 208,180.68, 287,290.20 and 112,687.32

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Solution

The fourth proportional to 208,180.68, 287,290.20 and 112,687.32 is: 155,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,180.68 : 287,290.20 = 112,687.32 : x
  2. Step 2: Convert to fraction form
    208,180.68/287,290.20 = 112,687.32/x
  3. Step 3: Cross multiply
    208,180.68x = 287,290.20 × 112,687.32
  4. Step 4: Simplify right side
    208,180.68x = 32,373,962,700.26
  5. Step 5: Solve for x
    x = 32,373,962,700.26/208,180.68
  6. Step 6: Final answer
    x = 155,508.97

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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.