Home / 189,736.56-261,841.87-103,700.32

Finding the Fourth Proportional to 189,736.56, 261,841.87 and 103,700.32

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Solution

The fourth proportional to 189,736.56, 261,841.87 and 103,700.32 is: 143,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,736.56 : 261,841.87 = 103,700.32 : x
  2. Step 2: Convert to fraction form
    189,736.56/261,841.87 = 103,700.32/x
  3. Step 3: Cross multiply
    189,736.56x = 261,841.87 × 103,700.32
  4. Step 4: Simplify right side
    189,736.56x = 27,153,085,183.42
  5. Step 5: Solve for x
    x = 27,153,085,183.42/189,736.56
  6. Step 6: Final answer
    x = 143,109.40

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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.