Home / 145,476.96-200,756.16-80,945.60

Finding the Fourth Proportional to 145,476.96, 200,756.16 and 80,945.60

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Solution

The fourth proportional to 145,476.96, 200,756.16 and 80,945.60 is: 111,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,476.96 : 200,756.16 = 80,945.60 : x
  2. Step 2: Convert to fraction form
    145,476.96/200,756.16 = 80,945.60/x
  3. Step 3: Cross multiply
    145,476.96x = 200,756.16 × 80,945.60
  4. Step 4: Simplify right side
    145,476.96x = 16,250,327,824.90
  5. Step 5: Solve for x
    x = 16,250,327,824.90/145,476.96
  6. Step 6: Final answer
    x = 111,703.79

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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.