Home / 143,095.08-197,480.16-79,433.94

Finding the Fourth Proportional to 143,095.08, 197,480.16 and 79,433.94

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Solution

The fourth proportional to 143,095.08, 197,480.16 and 79,433.94 is: 109,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,095.08 : 197,480.16 = 79,433.94 : x
  2. Step 2: Convert to fraction form
    143,095.08/197,480.16 = 79,433.94/x
  3. Step 3: Cross multiply
    143,095.08x = 197,480.16 × 79,433.94
  4. Step 4: Simplify right side
    143,095.08x = 15,686,627,180.63
  5. Step 5: Solve for x
    x = 15,686,627,180.63/143,095.08
  6. Step 6: Final answer
    x = 109,623.81

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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.