Home / 112,387.55-168,664.28-53,223.12

Finding the Fourth Proportional to 112,387.55, 168,664.28 and 53,223.12

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Solution

The fourth proportional to 112,387.55, 168,664.28 and 53,223.12 is: 79,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,387.55 : 168,664.28 = 53,223.12 : x
  2. Step 2: Convert to fraction form
    112,387.55/168,664.28 = 53,223.12/x
  3. Step 3: Cross multiply
    112,387.55x = 168,664.28 × 53,223.12
  4. Step 4: Simplify right side
    112,387.55x = 8,976,838,948.04
  5. Step 5: Solve for x
    x = 8,976,838,948.04/112,387.55
  6. Step 6: Final answer
    x = 79,873.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.