Home / 135,749.30-203,721.15-56,920.10

Finding the Fourth Proportional to 135,749.30, 203,721.15 and 56,920.10

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Solution

The fourth proportional to 135,749.30, 203,721.15 and 56,920.10 is: 85,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,749.30 : 203,721.15 = 56,920.10 : x
  2. Step 2: Convert to fraction form
    135,749.30/203,721.15 = 56,920.10/x
  3. Step 3: Cross multiply
    135,749.30x = 203,721.15 × 56,920.10
  4. Step 4: Simplify right side
    135,749.30x = 11,595,828,230.12
  5. Step 5: Solve for x
    x = 11,595,828,230.12/135,749.30
  6. Step 6: Final answer
    x = 85,420.91

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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.