Home / 189,815.49-261,938.07-113,347.44

Finding the Fourth Proportional to 189,815.49, 261,938.07 and 113,347.44

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Solution

The fourth proportional to 189,815.49, 261,938.07 and 113,347.44 is: 156,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,815.49 : 261,938.07 = 113,347.44 : x
  2. Step 2: Convert to fraction form
    189,815.49/261,938.07 = 113,347.44/x
  3. Step 3: Cross multiply
    189,815.49x = 261,938.07 × 113,347.44
  4. Step 4: Simplify right side
    189,815.49x = 29,690,009,673.04
  5. Step 5: Solve for x
    x = 29,690,009,673.04/189,815.49
  6. Step 6: Final answer
    x = 156,415.10

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1.5x scale

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.