Home / 165,515.85-248,200.16-47,160.45

Finding the Fourth Proportional to 165,515.85, 248,200.16 and 47,160.45

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Solution

The fourth proportional to 165,515.85, 248,200.16 and 47,160.45 is: 70,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,515.85 : 248,200.16 = 47,160.45 : x
  2. Step 2: Convert to fraction form
    165,515.85/248,200.16 = 47,160.45/x
  3. Step 3: Cross multiply
    165,515.85x = 248,200.16 × 47,160.45
  4. Step 4: Simplify right side
    165,515.85x = 11,705,230,999.87
  5. Step 5: Solve for x
    x = 11,705,230,999.87/165,515.85
  6. Step 6: Final answer
    x = 70,719.70

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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.