Home / 189,193.12-261,088.32-104,313.28

Finding the Fourth Proportional to 189,193.12, 261,088.32 and 104,313.28

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Solution

The fourth proportional to 189,193.12, 261,088.32 and 104,313.28 is: 143,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,193.12 : 261,088.32 = 104,313.28 : x
  2. Step 2: Convert to fraction form
    189,193.12/261,088.32 = 104,313.28/x
  3. Step 3: Cross multiply
    189,193.12x = 261,088.32 × 104,313.28
  4. Step 4: Simplify right side
    189,193.12x = 27,234,979,028.89
  5. Step 5: Solve for x
    x = 27,234,979,028.89/189,193.12
  6. Step 6: Final answer
    x = 143,953.33

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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.