Home / 124,481.20-186,794.70-45,603.40

Finding the Fourth Proportional to 124,481.20, 186,794.70 and 45,603.40

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Solution

The fourth proportional to 124,481.20, 186,794.70 and 45,603.40 is: 68,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,481.20 : 186,794.70 = 45,603.40 : x
  2. Step 2: Convert to fraction form
    124,481.20/186,794.70 = 45,603.40/x
  3. Step 3: Cross multiply
    124,481.20x = 186,794.70 × 45,603.40
  4. Step 4: Simplify right side
    124,481.20x = 8,518,473,421.98
  5. Step 5: Solve for x
    x = 8,518,473,421.98/124,481.20
  6. Step 6: Final answer
    x = 68,431.81

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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.