Home / 101,065.20-151,379.10-54,263.40

Finding the Fourth Proportional to 101,065.20, 151,379.10 and 54,263.40

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Solution

The fourth proportional to 101,065.20, 151,379.10 and 54,263.40 is: 81,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,065.20 : 151,379.10 = 54,263.40 : x
  2. Step 2: Convert to fraction form
    101,065.20/151,379.10 = 54,263.40/x
  3. Step 3: Cross multiply
    101,065.20x = 151,379.10 × 54,263.40
  4. Step 4: Simplify right side
    101,065.20x = 8,214,344,654.94
  5. Step 5: Solve for x
    x = 8,214,344,654.94/101,065.20
  6. Step 6: Final answer
    x = 81,277.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.