Home / 109,021.70-163,532.55-56,447.30

Finding the Fourth Proportional to 109,021.70, 163,532.55 and 56,447.30

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Solution

The fourth proportional to 109,021.70, 163,532.55 and 56,447.30 is: 84,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,021.70 : 163,532.55 = 56,447.30 : x
  2. Step 2: Convert to fraction form
    109,021.70/163,532.55 = 56,447.30/x
  3. Step 3: Cross multiply
    109,021.70x = 163,532.55 × 56,447.30
  4. Step 4: Simplify right side
    109,021.70x = 9,230,970,909.62
  5. Step 5: Solve for x
    x = 9,230,970,909.62/109,021.70
  6. Step 6: Final answer
    x = 84,670.95

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1.5x scale

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.