Home / 109,327.40-163,991.10-39,213.80

Finding the Fourth Proportional to 109,327.40, 163,991.10 and 39,213.80

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Solution

The fourth proportional to 109,327.40, 163,991.10 and 39,213.80 is: 58,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,327.40 : 163,991.10 = 39,213.80 : x
  2. Step 2: Convert to fraction form
    109,327.40/163,991.10 = 39,213.80/x
  3. Step 3: Cross multiply
    109,327.40x = 163,991.10 × 39,213.80
  4. Step 4: Simplify right side
    109,327.40x = 6,430,714,197.18
  5. Step 5: Solve for x
    x = 6,430,714,197.18/109,327.40
  6. Step 6: Final answer
    x = 58,820.70

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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.