Home / 156,942.70-235,410.39-38,615.08

Finding the Fourth Proportional to 156,942.70, 235,410.39 and 38,615.08

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Solution

The fourth proportional to 156,942.70, 235,410.39 and 38,615.08 is: 57,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.70 : 235,410.39 = 38,615.08 : x
  2. Step 2: Convert to fraction form
    156,942.70/235,410.39 = 38,615.08/x
  3. Step 3: Cross multiply
    156,942.70x = 235,410.39 × 38,615.08
  4. Step 4: Simplify right side
    156,942.70x = 9,090,391,042.68
  5. Step 5: Solve for x
    x = 9,090,391,042.68/156,942.70
  6. Step 6: Final answer
    x = 57,921.72

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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.