Home / 141,319.56-195,011.82-80,890.68

Finding the Fourth Proportional to 141,319.56, 195,011.82 and 80,890.68

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Solution

The fourth proportional to 141,319.56, 195,011.82 and 80,890.68 is: 111,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319.56 : 195,011.82 = 80,890.68 : x
  2. Step 2: Convert to fraction form
    141,319.56/195,011.82 = 80,890.68/x
  3. Step 3: Cross multiply
    141,319.56x = 195,011.82 × 80,890.68
  4. Step 4: Simplify right side
    141,319.56x = 15,774,638,727.84
  5. Step 5: Solve for x
    x = 15,774,638,727.84/141,319.56
  6. Step 6: Final answer
    x = 111,623.89

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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.