Home / 189,877.57-261,941.83-135,441.77

Finding the Fourth Proportional to 189,877.57, 261,941.83 and 135,441.77

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Solution

The fourth proportional to 189,877.57, 261,941.83 and 135,441.77 is: 186,846.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,877.57 : 261,941.83 = 135,441.77 : x
  2. Step 2: Convert to fraction form
    189,877.57/261,941.83 = 135,441.77/x
  3. Step 3: Cross multiply
    189,877.57x = 261,941.83 × 135,441.77
  4. Step 4: Simplify right side
    189,877.57x = 35,477,863,443.93
  5. Step 5: Solve for x
    x = 35,477,863,443.93/189,877.57
  6. Step 6: Final answer
    x = 186,846.00

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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.