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Finding the Fourth Proportional to 143,810.58, 198,459.60 and 80,152.49

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Solution

The fourth proportional to 143,810.58, 198,459.60 and 80,152.49 is: 110,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,810.58 : 198,459.60 = 80,152.49 : x
  2. Step 2: Convert to fraction form
    143,810.58/198,459.60 = 80,152.49/x
  3. Step 3: Cross multiply
    143,810.58x = 198,459.60 × 80,152.49
  4. Step 4: Simplify right side
    143,810.58x = 15,907,030,112.11
  5. Step 5: Solve for x
    x = 15,907,030,112.11/143,810.58
  6. Step 6: Final answer
    x = 110,610.99

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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.