Home / 118,783.20-163,786.26-75,705.06

Finding the Fourth Proportional to 118,783.20, 163,786.26 and 75,705.06

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Solution

The fourth proportional to 118,783.20, 163,786.26 and 75,705.06 is: 104,387.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,783.20 : 163,786.26 = 75,705.06 : x
  2. Step 2: Convert to fraction form
    118,783.20/163,786.26 = 75,705.06/x
  3. Step 3: Cross multiply
    118,783.20x = 163,786.26 × 75,705.06
  4. Step 4: Simplify right side
    118,783.20x = 12,399,448,640.48
  5. Step 5: Solve for x
    x = 12,399,448,640.48/118,783.20
  6. Step 6: Final answer
    x = 104,387.23

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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.