Home / 143,095.65-197,462.12-79,428.44

Finding the Fourth Proportional to 143,095.65, 197,462.12 and 79,428.44

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Solution

The fourth proportional to 143,095.65, 197,462.12 and 79,428.44 is: 109,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,095.65 : 197,462.12 = 79,428.44 : x
  2. Step 2: Convert to fraction form
    143,095.65/197,462.12 = 79,428.44/x
  3. Step 3: Cross multiply
    143,095.65x = 197,462.12 × 79,428.44
  4. Step 4: Simplify right side
    143,095.65x = 15,684,108,150.69
  5. Step 5: Solve for x
    x = 15,684,108,150.69/143,095.65
  6. Step 6: Final answer
    x = 109,605.76

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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.