Home / 109,213.30-163,820.04-30,327.52

Finding the Fourth Proportional to 109,213.30, 163,820.04 and 30,327.52

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Solution

The fourth proportional to 109,213.30, 163,820.04 and 30,327.52 is: 45,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.30 : 163,820.04 = 30,327.52 : x
  2. Step 2: Convert to fraction form
    109,213.30/163,820.04 = 30,327.52/x
  3. Step 3: Cross multiply
    109,213.30x = 163,820.04 × 30,327.52
  4. Step 4: Simplify right side
    109,213.30x = 4,968,255,539.50
  5. Step 5: Solve for x
    x = 4,968,255,539.50/109,213.30
  6. Step 6: Final answer
    x = 45,491.30

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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.