Home / 109,064.50-163,600.39-30,172.12

Finding the Fourth Proportional to 109,064.50, 163,600.39 and 30,172.12

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Solution

The fourth proportional to 109,064.50, 163,600.39 and 30,172.12 is: 45,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,064.50 : 163,600.39 = 30,172.12 : x
  2. Step 2: Convert to fraction form
    109,064.50/163,600.39 = 30,172.12/x
  3. Step 3: Cross multiply
    109,064.50x = 163,600.39 × 30,172.12
  4. Step 4: Simplify right side
    109,064.50x = 4,936,170,599.13
  5. Step 5: Solve for x
    x = 4,936,170,599.13/109,064.50
  6. Step 6: Final answer
    x = 45,259.19

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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.