Home / 147,668.74-221,454.51-81,183.94

Finding the Fourth Proportional to 147,668.74, 221,454.51 and 81,183.94

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Solution

The fourth proportional to 147,668.74, 221,454.51 and 81,183.94 is: 121,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,668.74 : 221,454.51 = 81,183.94 : x
  2. Step 2: Convert to fraction form
    147,668.74/221,454.51 = 81,183.94/x
  3. Step 3: Cross multiply
    147,668.74x = 221,454.51 × 81,183.94
  4. Step 4: Simplify right side
    147,668.74x = 17,978,549,652.57
  5. Step 5: Solve for x
    x = 17,978,549,652.57/147,668.74
  6. Step 6: Final answer
    x = 121,749.19

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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.