Home / 143,889.02-198,564.13-79,364.26

Finding the Fourth Proportional to 143,889.02, 198,564.13 and 79,364.26

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Solution

The fourth proportional to 143,889.02, 198,564.13 and 79,364.26 is: 109,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,889.02 : 198,564.13 = 79,364.26 : x
  2. Step 2: Convert to fraction form
    143,889.02/198,564.13 = 79,364.26/x
  3. Step 3: Cross multiply
    143,889.02x = 198,564.13 × 79,364.26
  4. Step 4: Simplify right side
    143,889.02x = 15,758,894,843.17
  5. Step 5: Solve for x
    x = 15,758,894,843.17/143,889.02
  6. Step 6: Final answer
    x = 109,521.18

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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.