Home / 143,210.84-197,630.86-79,554.56

Finding the Fourth Proportional to 143,210.84, 197,630.86 and 79,554.56

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Solution

The fourth proportional to 143,210.84, 197,630.86 and 79,554.56 is: 109,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,210.84 : 197,630.86 = 79,554.56 : x
  2. Step 2: Convert to fraction form
    143,210.84/197,630.86 = 79,554.56/x
  3. Step 3: Cross multiply
    143,210.84x = 197,630.86 × 79,554.56
  4. Step 4: Simplify right side
    143,210.84x = 15,722,436,109.72
  5. Step 5: Solve for x
    x = 15,722,436,109.72/143,210.84
  6. Step 6: Final answer
    x = 109,785.24

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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.