Home / 143,663.83-198,256.08-83,269.51

Finding the Fourth Proportional to 143,663.83, 198,256.08 and 83,269.51

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Solution

The fourth proportional to 143,663.83, 198,256.08 and 83,269.51 is: 114,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,663.83 : 198,256.08 = 83,269.51 : x
  2. Step 2: Convert to fraction form
    143,663.83/198,256.08 = 83,269.51/x
  3. Step 3: Cross multiply
    143,663.83x = 198,256.08 × 83,269.51
  4. Step 4: Simplify right side
    143,663.83x = 16,508,686,452.74
  5. Step 5: Solve for x
    x = 16,508,686,452.74/143,663.83
  6. Step 6: Final answer
    x = 114,911.92

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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.