Home / 143,577.63-198,137.14-79,914.06

Finding the Fourth Proportional to 143,577.63, 198,137.14 and 79,914.06

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Solution

The fourth proportional to 143,577.63, 198,137.14 and 79,914.06 is: 110,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,577.63 : 198,137.14 = 79,914.06 : x
  2. Step 2: Convert to fraction form
    143,577.63/198,137.14 = 79,914.06/x
  3. Step 3: Cross multiply
    143,577.63x = 198,137.14 × 79,914.06
  4. Step 4: Simplify right side
    143,577.63x = 15,833,943,094.40
  5. Step 5: Solve for x
    x = 15,833,943,094.40/143,577.63
  6. Step 6: Final answer
    x = 110,281.41

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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.