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Finding the Fourth Proportional to 109,073.04, 150,459.32 and 65,454.30

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Solution

The fourth proportional to 109,073.04, 150,459.32 and 65,454.30 is: 90,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,073.04 : 150,459.32 = 65,454.30 : x
  2. Step 2: Convert to fraction form
    109,073.04/150,459.32 = 65,454.30/x
  3. Step 3: Cross multiply
    109,073.04x = 150,459.32 × 65,454.30
  4. Step 4: Simplify right side
    109,073.04x = 9,848,209,469.08
  5. Step 5: Solve for x
    x = 9,848,209,469.08/109,073.04
  6. Step 6: Final answer
    x = 90,290.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.