Home / 109,212.30-163,823.85-56,724.30

Finding the Fourth Proportional to 109,212.30, 163,823.85 and 56,724.30

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Solution

The fourth proportional to 109,212.30, 163,823.85 and 56,724.30 is: 85,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,212.30 : 163,823.85 = 56,724.30 : x
  2. Step 2: Convert to fraction form
    109,212.30/163,823.85 = 56,724.30/x
  3. Step 3: Cross multiply
    109,212.30x = 163,823.85 × 56,724.30
  4. Step 4: Simplify right side
    109,212.30x = 9,292,793,214.56
  5. Step 5: Solve for x
    x = 9,292,793,214.56/109,212.30
  6. Step 6: Final answer
    x = 85,089.25

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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.