Home / 124,518.20-186,825.90-45,640.40

Finding the Fourth Proportional to 124,518.20, 186,825.90 and 45,640.40

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Solution

The fourth proportional to 124,518.20, 186,825.90 and 45,640.40 is: 68,478.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,518.20 : 186,825.90 = 45,640.40 : x
  2. Step 2: Convert to fraction form
    124,518.20/186,825.90 = 45,640.40/x
  3. Step 3: Cross multiply
    124,518.20x = 186,825.90 × 45,640.40
  4. Step 4: Simplify right side
    124,518.20x = 8,526,808,806.36
  5. Step 5: Solve for x
    x = 8,526,808,806.36/124,518.20
  6. Step 6: Final answer
    x = 68,478.41

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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.