Home / 143,477.76-197,995.24-79,817.70

Finding the Fourth Proportional to 143,477.76, 197,995.24 and 79,817.70

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Solution

The fourth proportional to 143,477.76, 197,995.24 and 79,817.70 is: 110,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,477.76 : 197,995.24 = 79,817.70 : x
  2. Step 2: Convert to fraction form
    143,477.76/197,995.24 = 79,817.70/x
  3. Step 3: Cross multiply
    143,477.76x = 197,995.24 × 79,817.70
  4. Step 4: Simplify right side
    143,477.76x = 15,803,524,667.75
  5. Step 5: Solve for x
    x = 15,803,524,667.75/143,477.76
  6. Step 6: Final answer
    x = 110,146.16

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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.