Home / 143,582.64-198,144.02-79,919.06

Finding the Fourth Proportional to 143,582.64, 198,144.02 and 79,919.06

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Solution

The fourth proportional to 143,582.64, 198,144.02 and 79,919.06 is: 110,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,582.64 : 198,144.02 = 79,919.06 : x
  2. Step 2: Convert to fraction form
    143,582.64/198,144.02 = 79,919.06/x
  3. Step 3: Cross multiply
    143,582.64x = 198,144.02 × 79,919.06
  4. Step 4: Simplify right side
    143,582.64x = 15,835,483,823.02
  5. Step 5: Solve for x
    x = 15,835,483,823.02/143,582.64
  6. Step 6: Final answer
    x = 110,288.29

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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.