Home / 189,404.91-261,477.05-138,360.33

Finding the Fourth Proportional to 189,404.91, 261,477.05 and 138,360.33

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Solution

The fourth proportional to 189,404.91, 261,477.05 and 138,360.33 is: 191,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,404.91 : 261,477.05 = 138,360.33 : x
  2. Step 2: Convert to fraction form
    189,404.91/261,477.05 = 138,360.33/x
  3. Step 3: Cross multiply
    189,404.91x = 261,477.05 × 138,360.33
  4. Step 4: Simplify right side
    189,404.91x = 36,178,050,233.62
  5. Step 5: Solve for x
    x = 36,178,050,233.62/189,404.91
  6. Step 6: Final answer
    x = 191,009.04

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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.