Home / 143,126.45-197,520.67-79,464.25

Finding the Fourth Proportional to 143,126.45, 197,520.67 and 79,464.25

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Solution

The fourth proportional to 143,126.45, 197,520.67 and 79,464.25 is: 109,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,126.45 : 197,520.67 = 79,464.25 : x
  2. Step 2: Convert to fraction form
    143,126.45/197,520.67 = 79,464.25/x
  3. Step 3: Cross multiply
    143,126.45x = 197,520.67 × 79,464.25
  4. Step 4: Simplify right side
    143,126.45x = 15,695,831,901.05
  5. Step 5: Solve for x
    x = 15,695,831,901.05/143,126.45
  6. Step 6: Final answer
    x = 109,664.09

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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.