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Finding the Fourth Proportional to 123,210.20, 184,815.30 and 89,530.40

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Solution

The fourth proportional to 123,210.20, 184,815.30 and 89,530.40 is: 134,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,210.20 : 184,815.30 = 89,530.40 : x
  2. Step 2: Convert to fraction form
    123,210.20/184,815.30 = 89,530.40/x
  3. Step 3: Cross multiply
    123,210.20x = 184,815.30 × 89,530.40
  4. Step 4: Simplify right side
    123,210.20x = 16,546,587,735.12
  5. Step 5: Solve for x
    x = 16,546,587,735.12/123,210.20
  6. Step 6: Final answer
    x = 134,295.60

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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.