Home / 156,691.56-235,063.26-77,808.36

Finding the Fourth Proportional to 156,691.56, 235,063.26 and 77,808.36

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Solution

The fourth proportional to 156,691.56, 235,063.26 and 77,808.36 is: 116,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.56 : 235,063.26 = 77,808.36 : x
  2. Step 2: Convert to fraction form
    156,691.56/235,063.26 = 77,808.36/x
  3. Step 3: Cross multiply
    156,691.56x = 235,063.26 × 77,808.36
  4. Step 4: Simplify right side
    156,691.56x = 18,289,886,756.85
  5. Step 5: Solve for x
    x = 18,289,886,756.85/156,691.56
  6. Step 6: Final answer
    x = 116,725.41

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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.