Home / 189,404.93-261,423.53-108,879.16

Finding the Fourth Proportional to 189,404.93, 261,423.53 and 108,879.16

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Solution

The fourth proportional to 189,404.93, 261,423.53 and 108,879.16 is: 150,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,404.93 : 261,423.53 = 108,879.16 : x
  2. Step 2: Convert to fraction form
    189,404.93/261,423.53 = 108,879.16/x
  3. Step 3: Cross multiply
    189,404.93x = 261,423.53 × 108,879.16
  4. Step 4: Simplify right side
    189,404.93x = 28,463,574,350.63
  5. Step 5: Solve for x
    x = 28,463,574,350.63/189,404.93
  6. Step 6: Final answer
    x = 150,278.95

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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.