Home / 112,388.48-168,589.22-42,268.40

Finding the Fourth Proportional to 112,388.48, 168,589.22 and 42,268.40

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Solution

The fourth proportional to 112,388.48, 168,589.22 and 42,268.40 is: 63,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,388.48 : 168,589.22 = 42,268.40 : x
  2. Step 2: Convert to fraction form
    112,388.48/168,589.22 = 42,268.40/x
  3. Step 3: Cross multiply
    112,388.48x = 168,589.22 × 42,268.40
  4. Step 4: Simplify right side
    112,388.48x = 7,125,996,164.57
  5. Step 5: Solve for x
    x = 7,125,996,164.57/112,388.48
  6. Step 6: Final answer
    x = 63,405.04

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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.