Home / 143,124.80-197,504.51-79,458.50

Finding the Fourth Proportional to 143,124.80, 197,504.51 and 79,458.50

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Solution

The fourth proportional to 143,124.80, 197,504.51 and 79,458.50 is: 109,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,124.80 : 197,504.51 = 79,458.50 : x
  2. Step 2: Convert to fraction form
    143,124.80/197,504.51 = 79,458.50/x
  3. Step 3: Cross multiply
    143,124.80x = 197,504.51 × 79,458.50
  4. Step 4: Simplify right side
    143,124.80x = 15,693,410,723.02
  5. Step 5: Solve for x
    x = 15,693,410,723.02/143,124.80
  6. Step 6: Final answer
    x = 109,648.44

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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.