Home / 143,225.84-197,651.52-79,569.60

Finding the Fourth Proportional to 143,225.84, 197,651.52 and 79,569.60

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Solution

The fourth proportional to 143,225.84, 197,651.52 and 79,569.60 is: 109,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,225.84 : 197,651.52 = 79,569.60 : x
  2. Step 2: Convert to fraction form
    143,225.84/197,651.52 = 79,569.60/x
  3. Step 3: Cross multiply
    143,225.84x = 197,651.52 × 79,569.60
  4. Step 4: Simplify right side
    143,225.84x = 15,727,052,385.79
  5. Step 5: Solve for x
    x = 15,727,052,385.79/143,225.84
  6. Step 6: Final answer
    x = 109,805.97

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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.