Home / 156,776.54-235,245.23-76,812.98

Finding the Fourth Proportional to 156,776.54, 235,245.23 and 76,812.98

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Solution

The fourth proportional to 156,776.54, 235,245.23 and 76,812.98 is: 115,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776.54 : 235,245.23 = 76,812.98 : x
  2. Step 2: Convert to fraction form
    156,776.54/235,245.23 = 76,812.98/x
  3. Step 3: Cross multiply
    156,776.54x = 235,245.23 × 76,812.98
  4. Step 4: Simplify right side
    156,776.54x = 18,069,887,147.09
  5. Step 5: Solve for x
    x = 18,069,887,147.09/156,776.54
  6. Step 6: Final answer
    x = 115,258.87

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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.