Home / 189,939.48-262,123.34-105,057.15

Finding the Fourth Proportional to 189,939.48, 262,123.34 and 105,057.15

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Solution

The fourth proportional to 189,939.48, 262,123.34 and 105,057.15 is: 144,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,939.48 : 262,123.34 = 105,057.15 : x
  2. Step 2: Convert to fraction form
    189,939.48/262,123.34 = 105,057.15/x
  3. Step 3: Cross multiply
    189,939.48x = 262,123.34 × 105,057.15
  4. Step 4: Simplify right side
    189,939.48x = 27,537,930,523.60
  5. Step 5: Solve for x
    x = 27,537,930,523.60/189,939.48
  6. Step 6: Final answer
    x = 144,982.66

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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.