Home / 189,165.18-261,034.86-106,391.55

Finding the Fourth Proportional to 189,165.18, 261,034.86 and 106,391.55

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Solution

The fourth proportional to 189,165.18, 261,034.86 and 106,391.55 is: 146,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,165.18 : 261,034.86 = 106,391.55 : x
  2. Step 2: Convert to fraction form
    189,165.18/261,034.86 = 106,391.55/x
  3. Step 3: Cross multiply
    189,165.18x = 261,034.86 × 106,391.55
  4. Step 4: Simplify right side
    189,165.18x = 27,771,903,359.43
  5. Step 5: Solve for x
    x = 27,771,903,359.43/189,165.18
  6. Step 6: Final answer
    x = 146,812.98

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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.