Home / 143,499.36-198,029.10-79,837.14

Finding the Fourth Proportional to 143,499.36, 198,029.10 and 79,837.14

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Solution

The fourth proportional to 143,499.36, 198,029.10 and 79,837.14 is: 110,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,499.36 : 198,029.10 = 79,837.14 : x
  2. Step 2: Convert to fraction form
    143,499.36/198,029.10 = 79,837.14/x
  3. Step 3: Cross multiply
    143,499.36x = 198,029.10 × 79,837.14
  4. Step 4: Simplify right side
    143,499.36x = 15,810,076,980.77
  5. Step 5: Solve for x
    x = 15,810,076,980.77/143,499.36
  6. Step 6: Final answer
    x = 110,175.24

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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.