Home / 118,084.07-162,947.87-66,408.89

Finding the Fourth Proportional to 118,084.07, 162,947.87 and 66,408.89

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Solution

The fourth proportional to 118,084.07, 162,947.87 and 66,408.89 is: 91,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,084.07 : 162,947.87 = 66,408.89 : x
  2. Step 2: Convert to fraction form
    118,084.07/162,947.87 = 66,408.89/x
  3. Step 3: Cross multiply
    118,084.07x = 162,947.87 × 66,408.89
  4. Step 4: Simplify right side
    118,084.07x = 10,821,186,027.78
  5. Step 5: Solve for x
    x = 10,821,186,027.78/118,084.07
  6. Step 6: Final answer
    x = 91,639.68

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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.