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Finding the Fourth Proportional to 112,726, 155,566.77 and 62,425

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Solution

The fourth proportional to 112,726, 155,566.77 and 62,425 is: 86,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,726 : 155,566.77 = 62,425 : x
  2. Step 2: Convert to fraction form
    112,726/155,566.77 = 62,425/x
  3. Step 3: Cross multiply
    112,726x = 155,566.77 × 62,425
  4. Step 4: Simplify right side
    112,726x = 9,711,255,617.25
  5. Step 5: Solve for x
    x = 9,711,255,617.25/112,726
  6. Step 6: Final answer
    x = 86,149.21

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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.