Home / 189,433.62-261,446.67-121,527.27

Finding the Fourth Proportional to 189,433.62, 261,446.67 and 121,527.27

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Solution

The fourth proportional to 189,433.62, 261,446.67 and 121,527.27 is: 167,725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,433.62 : 261,446.67 = 121,527.27 : x
  2. Step 2: Convert to fraction form
    189,433.62/261,446.67 = 121,527.27/x
  3. Step 3: Cross multiply
    189,433.62x = 261,446.67 × 121,527.27
  4. Step 4: Simplify right side
    189,433.62x = 31,772,900,055.69
  5. Step 5: Solve for x
    x = 31,772,900,055.69/189,433.62
  6. Step 6: Final answer
    x = 167,725.77

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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.