Home / 143,946.66-198,646.74-80,288.58

Finding the Fourth Proportional to 143,946.66, 198,646.74 and 80,288.58

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Solution

The fourth proportional to 143,946.66, 198,646.74 and 80,288.58 is: 110,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,946.66 : 198,646.74 = 80,288.58 : x
  2. Step 2: Convert to fraction form
    143,946.66/198,646.74 = 80,288.58/x
  3. Step 3: Cross multiply
    143,946.66x = 198,646.74 × 80,288.58
  4. Step 4: Simplify right side
    143,946.66x = 15,949,064,676.23
  5. Step 5: Solve for x
    x = 15,949,064,676.23/143,946.66
  6. Step 6: Final answer
    x = 110,798.44

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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.