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Finding the Fourth Proportional to 109,065.98, 163,598.98 and 30,180.21

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Solution

The fourth proportional to 109,065.98, 163,598.98 and 30,180.21 is: 45,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.98 : 163,598.98 = 30,180.21 : x
  2. Step 2: Convert to fraction form
    109,065.98/163,598.98 = 30,180.21/x
  3. Step 3: Cross multiply
    109,065.98x = 163,598.98 × 30,180.21
  4. Step 4: Simplify right side
    109,065.98x = 4,937,451,496.74
  5. Step 5: Solve for x
    x = 4,937,451,496.74/109,065.98
  6. Step 6: Final answer
    x = 45,270.32

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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.