Home / 189,938.60-284,907.90-106,821.80

Finding the Fourth Proportional to 189,938.60, 284,907.90 and 106,821.80

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Solution

The fourth proportional to 189,938.60, 284,907.90 and 106,821.80 is: 160,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,938.60 : 284,907.90 = 106,821.80 : x
  2. Step 2: Convert to fraction form
    189,938.60/284,907.90 = 106,821.80/x
  3. Step 3: Cross multiply
    189,938.60x = 284,907.90 × 106,821.80
  4. Step 4: Simplify right side
    189,938.60x = 30,434,374,712.22
  5. Step 5: Solve for x
    x = 30,434,374,712.22/189,938.60
  6. Step 6: Final answer
    x = 160,232.70

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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.