Home / 156,719.15-235,078.73-45,911.15

Finding the Fourth Proportional to 156,719.15, 235,078.73 and 45,911.15

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Solution

The fourth proportional to 156,719.15, 235,078.73 and 45,911.15 is: 68,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,719.15 : 235,078.73 = 45,911.15 : x
  2. Step 2: Convert to fraction form
    156,719.15/235,078.73 = 45,911.15/x
  3. Step 3: Cross multiply
    156,719.15x = 235,078.73 × 45,911.15
  4. Step 4: Simplify right side
    156,719.15x = 10,792,734,834.84
  5. Step 5: Solve for x
    x = 10,792,734,834.84/156,719.15
  6. Step 6: Final answer
    x = 68,866.73

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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.