Home / 112,700.49-155,515.90-67,369.47

Finding the Fourth Proportional to 112,700.49, 155,515.90 and 67,369.47

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Solution

The fourth proportional to 112,700.49, 155,515.90 and 67,369.47 is: 92,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.49 : 155,515.90 = 67,369.47 : x
  2. Step 2: Convert to fraction form
    112,700.49/155,515.90 = 67,369.47/x
  3. Step 3: Cross multiply
    112,700.49x = 155,515.90 × 67,369.47
  4. Step 4: Simplify right side
    112,700.49x = 10,477,023,759.57
  5. Step 5: Solve for x
    x = 10,477,023,759.57/112,700.49
  6. Step 6: Final answer
    x = 92,963.43

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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.