Home / 143,380.66-197,864.85-79,718.44

Finding the Fourth Proportional to 143,380.66, 197,864.85 and 79,718.44

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Solution

The fourth proportional to 143,380.66, 197,864.85 and 79,718.44 is: 110,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,380.66 : 197,864.85 = 79,718.44 : x
  2. Step 2: Convert to fraction form
    143,380.66/197,864.85 = 79,718.44/x
  3. Step 3: Cross multiply
    143,380.66x = 197,864.85 × 79,718.44
  4. Step 4: Simplify right side
    143,380.66x = 15,773,477,172.83
  5. Step 5: Solve for x
    x = 15,773,477,172.83/143,380.66
  6. Step 6: Final answer
    x = 110,011.19

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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.