Home / 189,828.96-261,955.67-109,259.07

Finding the Fourth Proportional to 189,828.96, 261,955.67 and 109,259.07

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Solution

The fourth proportional to 189,828.96, 261,955.67 and 109,259.07 is: 150,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,828.96 : 261,955.67 = 109,259.07 : x
  2. Step 2: Convert to fraction form
    189,828.96/261,955.67 = 109,259.07/x
  3. Step 3: Cross multiply
    189,828.96x = 261,955.67 × 109,259.07
  4. Step 4: Simplify right side
    189,828.96x = 28,621,032,339.13
  5. Step 5: Solve for x
    x = 28,621,032,339.13/189,828.96
  6. Step 6: Final answer
    x = 150,772.74

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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.