Home / 145,783.72-201,190.80-109,910.44

Finding the Fourth Proportional to 145,783.72, 201,190.80 and 109,910.44

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Solution

The fourth proportional to 145,783.72, 201,190.80 and 109,910.44 is: 151,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,783.72 : 201,190.80 = 109,910.44 : x
  2. Step 2: Convert to fraction form
    145,783.72/201,190.80 = 109,910.44/x
  3. Step 3: Cross multiply
    145,783.72x = 201,190.80 × 109,910.44
  4. Step 4: Simplify right side
    145,783.72x = 22,112,969,351.95
  5. Step 5: Solve for x
    x = 22,112,969,351.95/145,783.72
  6. Step 6: Final answer
    x = 151,683.39

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1.5x scale

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.