Home / 208,120.06-287,205.78-112,626.46

Finding the Fourth Proportional to 208,120.06, 287,205.78 and 112,626.46

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Solution

The fourth proportional to 208,120.06, 287,205.78 and 112,626.46 is: 155,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,120.06 : 287,205.78 = 112,626.46 : x
  2. Step 2: Convert to fraction form
    208,120.06/287,205.78 = 112,626.46/x
  3. Step 3: Cross multiply
    208,120.06x = 287,205.78 × 112,626.46
  4. Step 4: Simplify right side
    208,120.06x = 32,346,970,292.94
  5. Step 5: Solve for x
    x = 32,346,970,292.94/208,120.06
  6. Step 6: Final answer
    x = 155,424.57

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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.