Home / 124,582.87-186,763.20-45,678.70

Finding the Fourth Proportional to 124,582.87, 186,763.20 and 45,678.70

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Solution

The fourth proportional to 124,582.87, 186,763.20 and 45,678.70 is: 68,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,582.87 : 186,763.20 = 45,678.70 : x
  2. Step 2: Convert to fraction form
    124,582.87/186,763.20 = 45,678.70/x
  3. Step 3: Cross multiply
    124,582.87x = 186,763.20 × 45,678.70
  4. Step 4: Simplify right side
    124,582.87x = 8,531,100,183.84
  5. Step 5: Solve for x
    x = 8,531,100,183.84/124,582.87
  6. Step 6: Final answer
    x = 68,477.31

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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.