Home / 136,935.40-205,403.10-113,895.40

Finding the Fourth Proportional to 136,935.40, 205,403.10 and 113,895.40

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Solution

The fourth proportional to 136,935.40, 205,403.10 and 113,895.40 is: 170,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.40 : 205,403.10 = 113,895.40 : x
  2. Step 2: Convert to fraction form
    136,935.40/205,403.10 = 113,895.40/x
  3. Step 3: Cross multiply
    136,935.40x = 205,403.10 × 113,895.40
  4. Step 4: Simplify right side
    136,935.40x = 23,394,468,235.74
  5. Step 5: Solve for x
    x = 23,394,468,235.74/136,935.40
  6. Step 6: Final answer
    x = 170,843.10

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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.