Home / 208,105.04-287,185.73-112,611.74

Finding the Fourth Proportional to 208,105.04, 287,185.73 and 112,611.74

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Solution

The fourth proportional to 208,105.04, 287,185.73 and 112,611.74 is: 155,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,105.04 : 287,185.73 = 112,611.74 : x
  2. Step 2: Convert to fraction form
    208,105.04/287,185.73 = 112,611.74/x
  3. Step 3: Cross multiply
    208,105.04x = 287,185.73 × 112,611.74
  4. Step 4: Simplify right side
    208,105.04x = 32,340,482,759.48
  5. Step 5: Solve for x
    x = 32,340,482,759.48/208,105.04
  6. Step 6: Final answer
    x = 155,404.61

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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.