Home / 198,187.95-297,327.34-85,887.02

Finding the Fourth Proportional to 198,187.95, 297,327.34 and 85,887.02

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Solution

The fourth proportional to 198,187.95, 297,327.34 and 85,887.02 is: 128,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,187.95 : 297,327.34 = 85,887.02 : x
  2. Step 2: Convert to fraction form
    198,187.95/297,327.34 = 85,887.02/x
  3. Step 3: Cross multiply
    198,187.95x = 297,327.34 × 85,887.02
  4. Step 4: Simplify right side
    198,187.95x = 25,536,559,515.11
  5. Step 5: Solve for x
    x = 25,536,559,515.11/198,187.95
  6. Step 6: Final answer
    x = 128,850.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.