Home / 143,216.64-197,642.70-79,560.36

Finding the Fourth Proportional to 143,216.64, 197,642.70 and 79,560.36

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Solution

The fourth proportional to 143,216.64, 197,642.70 and 79,560.36 is: 109,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,216.64 : 197,642.70 = 79,560.36 : x
  2. Step 2: Convert to fraction form
    143,216.64/197,642.70 = 79,560.36/x
  3. Step 3: Cross multiply
    143,216.64x = 197,642.70 × 79,560.36
  4. Step 4: Simplify right side
    143,216.64x = 15,724,524,363.37
  5. Step 5: Solve for x
    x = 15,724,524,363.37/143,216.64
  6. Step 6: Final answer
    x = 109,795.37

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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.