Home / 190,379.60-262,725.96-105,498.32

Finding the Fourth Proportional to 190,379.60, 262,725.96 and 105,498.32

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Solution

The fourth proportional to 190,379.60, 262,725.96 and 105,498.32 is: 145,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,379.60 : 262,725.96 = 105,498.32 : x
  2. Step 2: Convert to fraction form
    190,379.60/262,725.96 = 105,498.32/x
  3. Step 3: Cross multiply
    190,379.60x = 262,725.96 × 105,498.32
  4. Step 4: Simplify right side
    190,379.60x = 27,717,147,400.39
  5. Step 5: Solve for x
    x = 27,717,147,400.39/190,379.60
  6. Step 6: Final answer
    x = 145,588.85

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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.