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Finding the Fourth Proportional to 165,003.80, 247,505.70 and 112,515.80

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Solution

The fourth proportional to 165,003.80, 247,505.70 and 112,515.80 is: 168,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,003.80 : 247,505.70 = 112,515.80 : x
  2. Step 2: Convert to fraction form
    165,003.80/247,505.70 = 112,515.80/x
  3. Step 3: Cross multiply
    165,003.80x = 247,505.70 × 112,515.80
  4. Step 4: Simplify right side
    165,003.80x = 27,848,301,840.06
  5. Step 5: Solve for x
    x = 27,848,301,840.06/165,003.80
  6. Step 6: Final answer
    x = 168,773.70

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1.5x scale

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.