Home / 165,749.40-248,624.10-139,505.40

Finding the Fourth Proportional to 165,749.40, 248,624.10 and 139,505.40

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Solution

The fourth proportional to 165,749.40, 248,624.10 and 139,505.40 is: 209,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,749.40 : 248,624.10 = 139,505.40 : x
  2. Step 2: Convert to fraction form
    165,749.40/248,624.10 = 139,505.40/x
  3. Step 3: Cross multiply
    165,749.40x = 248,624.10 × 139,505.40
  4. Step 4: Simplify right side
    165,749.40x = 34,684,404,520.14
  5. Step 5: Solve for x
    x = 34,684,404,520.14/165,749.40
  6. Step 6: Final answer
    x = 209,258.10

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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.