Home / 208,422.16-287,517.72-136,792.24

Finding the Fourth Proportional to 208,422.16, 287,517.72 and 136,792.24

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Solution

The fourth proportional to 208,422.16, 287,517.72 and 136,792.24 is: 188,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,422.16 : 287,517.72 = 136,792.24 : x
  2. Step 2: Convert to fraction form
    208,422.16/287,517.72 = 136,792.24/x
  3. Step 3: Cross multiply
    208,422.16x = 287,517.72 × 136,792.24
  4. Step 4: Simplify right side
    208,422.16x = 39,330,192,958.49
  5. Step 5: Solve for x
    x = 39,330,192,958.49/208,422.16
  6. Step 6: Final answer
    x = 188,704.47

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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.