Home / 189,979.63-262,128.96-113,483.75

Finding the Fourth Proportional to 189,979.63, 262,128.96 and 113,483.75

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Solution

The fourth proportional to 189,979.63, 262,128.96 and 113,483.75 is: 156,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,979.63 : 262,128.96 = 113,483.75 : x
  2. Step 2: Convert to fraction form
    189,979.63/262,128.96 = 113,483.75/x
  3. Step 3: Cross multiply
    189,979.63x = 262,128.96 × 113,483.75
  4. Step 4: Simplify right side
    189,979.63x = 29,747,378,081.16
  5. Step 5: Solve for x
    x = 29,747,378,081.16/189,979.63
  6. Step 6: Final answer
    x = 156,581.93

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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.