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Finding the Fourth Proportional to 118,190.80, 177,319.05 and 65,637.19

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Solution

The fourth proportional to 118,190.80, 177,319.05 and 65,637.19 is: 98,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,190.80 : 177,319.05 = 65,637.19 : x
  2. Step 2: Convert to fraction form
    118,190.80/177,319.05 = 65,637.19/x
  3. Step 3: Cross multiply
    118,190.80x = 177,319.05 × 65,637.19
  4. Step 4: Simplify right side
    118,190.80x = 11,638,724,175.47
  5. Step 5: Solve for x
    x = 11,638,724,175.47/118,190.80
  6. Step 6: Final answer
    x = 98,474.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.