Home / 189,707.47-261,773.91-113,212.42

Finding the Fourth Proportional to 189,707.47, 261,773.91 and 113,212.42

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Solution

The fourth proportional to 189,707.47, 261,773.91 and 113,212.42 is: 156,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,707.47 : 261,773.91 = 113,212.42 : x
  2. Step 2: Convert to fraction form
    189,707.47/261,773.91 = 113,212.42/x
  3. Step 3: Cross multiply
    189,707.47x = 261,773.91 × 113,212.42
  4. Step 4: Simplify right side
    189,707.47x = 29,636,057,189.53
  5. Step 5: Solve for x
    x = 29,636,057,189.53/189,707.47
  6. Step 6: Final answer
    x = 156,219.77

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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.