Home / 143,014.57-197,360.10-79,352.83

Finding the Fourth Proportional to 143,014.57, 197,360.10 and 79,352.83

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Solution

The fourth proportional to 143,014.57, 197,360.10 and 79,352.83 is: 109,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,014.57 : 197,360.10 = 79,352.83 : x
  2. Step 2: Convert to fraction form
    143,014.57/197,360.10 = 79,352.83/x
  3. Step 3: Cross multiply
    143,014.57x = 197,360.10 × 79,352.83
  4. Step 4: Simplify right side
    143,014.57x = 15,661,082,464.08
  5. Step 5: Solve for x
    x = 15,661,082,464.08/143,014.57
  6. Step 6: Final answer
    x = 109,506.90

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1.5x scale

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.