Home / 143,257.12-197,693.40-79,593.58

Finding the Fourth Proportional to 143,257.12, 197,693.40 and 79,593.58

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Solution

The fourth proportional to 143,257.12, 197,693.40 and 79,593.58 is: 109,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.12 : 197,693.40 = 79,593.58 : x
  2. Step 2: Convert to fraction form
    143,257.12/197,693.40 = 79,593.58/x
  3. Step 3: Cross multiply
    143,257.12x = 197,693.40 × 79,593.58
  4. Step 4: Simplify right side
    143,257.12x = 15,735,125,448.37
  5. Step 5: Solve for x
    x = 15,735,125,448.37/143,257.12
  6. Step 6: Final answer
    x = 109,838.35

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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.