Home / 112,458.48-155,190-61,468.92

Finding the Fourth Proportional to 112,458.48, 155,190 and 61,468.92

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Solution

The fourth proportional to 112,458.48, 155,190 and 61,468.92 is: 84,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,458.48 : 155,190 = 61,468.92 : x
  2. Step 2: Convert to fraction form
    112,458.48/155,190 = 61,468.92/x
  3. Step 3: Cross multiply
    112,458.48x = 155,190 × 61,468.92
  4. Step 4: Simplify right side
    112,458.48x = 9,539,361,694.80
  5. Step 5: Solve for x
    x = 9,539,361,694.80/112,458.48
  6. Step 6: Final answer
    x = 84,825.63

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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.