Home / 117,585.40-162,203.22-74,485.96

Finding the Fourth Proportional to 117,585.40, 162,203.22 and 74,485.96

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Solution

The fourth proportional to 117,585.40, 162,203.22 and 74,485.96 is: 102,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,585.40 : 162,203.22 = 74,485.96 : x
  2. Step 2: Convert to fraction form
    117,585.40/162,203.22 = 74,485.96/x
  3. Step 3: Cross multiply
    117,585.40x = 162,203.22 × 74,485.96
  4. Step 4: Simplify right side
    117,585.40x = 12,081,862,556.79
  5. Step 5: Solve for x
    x = 12,081,862,556.79/117,585.40
  6. Step 6: Final answer
    x = 102,749.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.