Home / 135,712.16-203,419.20-56,876.48

Finding the Fourth Proportional to 135,712.16, 203,419.20 and 56,876.48

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Solution

The fourth proportional to 135,712.16, 203,419.20 and 56,876.48 is: 85,252.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,712.16 : 203,419.20 = 56,876.48 : x
  2. Step 2: Convert to fraction form
    135,712.16/203,419.20 = 56,876.48/x
  3. Step 3: Cross multiply
    135,712.16x = 203,419.20 × 56,876.48
  4. Step 4: Simplify right side
    135,712.16x = 11,569,768,060.42
  5. Step 5: Solve for x
    x = 11,569,768,060.42/135,712.16
  6. Step 6: Final answer
    x = 85,252.26

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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.