Home / 143,352.83-197,831.99-78,826.98

Finding the Fourth Proportional to 143,352.83, 197,831.99 and 78,826.98

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Solution

The fourth proportional to 143,352.83, 197,831.99 and 78,826.98 is: 108,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,352.83 : 197,831.99 = 78,826.98 : x
  2. Step 2: Convert to fraction form
    143,352.83/197,831.99 = 78,826.98/x
  3. Step 3: Cross multiply
    143,352.83x = 197,831.99 × 78,826.98
  4. Step 4: Simplify right side
    143,352.83x = 15,594,498,319.09
  5. Step 5: Solve for x
    x = 15,594,498,319.09/143,352.83
  6. Step 6: Final answer
    x = 108,784.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.