Home / 143,595.09-198,179.79-82,365.15

Finding the Fourth Proportional to 143,595.09, 198,179.79 and 82,365.15

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Solution

The fourth proportional to 143,595.09, 198,179.79 and 82,365.15 is: 113,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,595.09 : 198,179.79 = 82,365.15 : x
  2. Step 2: Convert to fraction form
    143,595.09/198,179.79 = 82,365.15/x
  3. Step 3: Cross multiply
    143,595.09x = 198,179.79 × 82,365.15
  4. Step 4: Simplify right side
    143,595.09x = 16,323,108,130.32
  5. Step 5: Solve for x
    x = 16,323,108,130.32/143,595.09
  6. Step 6: Final answer
    x = 113,674.56

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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.