Home / 109,201.12-163,827.60-56,635.36

Finding the Fourth Proportional to 109,201.12, 163,827.60 and 56,635.36

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Solution

The fourth proportional to 109,201.12, 163,827.60 and 56,635.36 is: 84,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,201.12 : 163,827.60 = 56,635.36 : x
  2. Step 2: Convert to fraction form
    109,201.12/163,827.60 = 56,635.36/x
  3. Step 3: Cross multiply
    109,201.12x = 163,827.60 × 56,635.36
  4. Step 4: Simplify right side
    109,201.12x = 9,278,435,103.94
  5. Step 5: Solve for x
    x = 9,278,435,103.94/109,201.12
  6. Step 6: Final answer
    x = 84,966.48

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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.