Home / 118,220.44-163,144.14-75,778.94

Finding the Fourth Proportional to 118,220.44, 163,144.14 and 75,778.94

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Solution

The fourth proportional to 118,220.44, 163,144.14 and 75,778.94 is: 104,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,220.44 : 163,144.14 = 75,778.94 : x
  2. Step 2: Convert to fraction form
    118,220.44/163,144.14 = 75,778.94/x
  3. Step 3: Cross multiply
    118,220.44x = 163,144.14 × 75,778.94
  4. Step 4: Simplify right side
    118,220.44x = 12,362,889,996.41
  5. Step 5: Solve for x
    x = 12,362,889,996.41/118,220.44
  6. Step 6: Final answer
    x = 104,574.89

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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.