Home / 189,316.34-261,257.29-103,277.15

Finding the Fourth Proportional to 189,316.34, 261,257.29 and 103,277.15

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Solution

The fourth proportional to 189,316.34, 261,257.29 and 103,277.15 is: 142,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,316.34 : 261,257.29 = 103,277.15 : x
  2. Step 2: Convert to fraction form
    189,316.34/261,257.29 = 103,277.15/x
  3. Step 3: Cross multiply
    189,316.34x = 261,257.29 × 103,277.15
  4. Step 4: Simplify right side
    189,316.34x = 26,981,907,674.78
  5. Step 5: Solve for x
    x = 26,981,907,674.78/189,316.34
  6. Step 6: Final answer
    x = 142,522.87

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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.