Home / 112,828.96-155,653.86-72,535.24

Finding the Fourth Proportional to 112,828.96, 155,653.86 and 72,535.24

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Solution

The fourth proportional to 112,828.96, 155,653.86 and 72,535.24 is: 100,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,828.96 : 155,653.86 = 72,535.24 : x
  2. Step 2: Convert to fraction form
    112,828.96/155,653.86 = 72,535.24/x
  3. Step 3: Cross multiply
    112,828.96x = 155,653.86 × 72,535.24
  4. Step 4: Simplify right side
    112,828.96x = 11,290,390,092.03
  5. Step 5: Solve for x
    x = 11,290,390,092.03/112,828.96
  6. Step 6: Final answer
    x = 100,066.42

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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.