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Finding the Fourth Proportional to 135,904.20, 203,929.20 and 57,026.40

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Solution

The fourth proportional to 135,904.20, 203,929.20 and 57,026.40 is: 85,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,904.20 : 203,929.20 = 57,026.40 : x
  2. Step 2: Convert to fraction form
    135,904.20/203,929.20 = 57,026.40/x
  3. Step 3: Cross multiply
    135,904.20x = 203,929.20 × 57,026.40
  4. Step 4: Simplify right side
    135,904.20x = 11,629,348,130.88
  5. Step 5: Solve for x
    x = 11,629,348,130.88/135,904.20
  6. Step 6: Final answer
    x = 85,570.19

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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.