Home / 145,412.85-200,667.60-80,881.41

Finding the Fourth Proportional to 145,412.85, 200,667.60 and 80,881.41

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Solution

The fourth proportional to 145,412.85, 200,667.60 and 80,881.41 is: 111,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.85 : 200,667.60 = 80,881.41 : x
  2. Step 2: Convert to fraction form
    145,412.85/200,667.60 = 80,881.41/x
  3. Step 3: Cross multiply
    145,412.85x = 200,667.60 × 80,881.41
  4. Step 4: Simplify right side
    145,412.85x = 16,230,278,429.32
  5. Step 5: Solve for x
    x = 16,230,278,429.32/145,412.85
  6. Step 6: Final answer
    x = 111,615.16

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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.