Home / 143,352.03-197,830.87-78,826.16

Finding the Fourth Proportional to 143,352.03, 197,830.87 and 78,826.16

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Solution

The fourth proportional to 143,352.03, 197,830.87 and 78,826.16 is: 108,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,352.03 : 197,830.87 = 78,826.16 : x
  2. Step 2: Convert to fraction form
    143,352.03/197,830.87 = 78,826.16/x
  3. Step 3: Cross multiply
    143,352.03x = 197,830.87 × 78,826.16
  4. Step 4: Simplify right side
    143,352.03x = 15,594,247,811.56
  5. Step 5: Solve for x
    x = 15,594,247,811.56/143,352.03
  6. Step 6: Final answer
    x = 108,782.89

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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.