Home / 163,979.40-246,078.45-75,187.20

Finding the Fourth Proportional to 163,979.40, 246,078.45 and 75,187.20

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Solution

The fourth proportional to 163,979.40, 246,078.45 and 75,187.20 is: 112,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,979.40 : 246,078.45 = 75,187.20 : x
  2. Step 2: Convert to fraction form
    163,979.40/246,078.45 = 75,187.20/x
  3. Step 3: Cross multiply
    163,979.40x = 246,078.45 × 75,187.20
  4. Step 4: Simplify right side
    163,979.40x = 18,501,949,635.84
  5. Step 5: Solve for x
    x = 18,501,949,635.84/163,979.40
  6. Step 6: Final answer
    x = 112,830.94

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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.