Home / 189,453.45-261,444.51-103,412.09

Finding the Fourth Proportional to 189,453.45, 261,444.51 and 103,412.09

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Solution

The fourth proportional to 189,453.45, 261,444.51 and 103,412.09 is: 142,708.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,453.45 : 261,444.51 = 103,412.09 : x
  2. Step 2: Convert to fraction form
    189,453.45/261,444.51 = 103,412.09/x
  3. Step 3: Cross multiply
    189,453.45x = 261,444.51 × 103,412.09
  4. Step 4: Simplify right side
    189,453.45x = 27,036,523,198.13
  5. Step 5: Solve for x
    x = 27,036,523,198.13/189,453.45
  6. Step 6: Final answer
    x = 142,708.00

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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.