Home / 118,829.69-163,982.40-65,113.55

Finding the Fourth Proportional to 118,829.69, 163,982.40 and 65,113.55

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Solution

The fourth proportional to 118,829.69, 163,982.40 and 65,113.55 is: 89,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.69 : 163,982.40 = 65,113.55 : x
  2. Step 2: Convert to fraction form
    118,829.69/163,982.40 = 65,113.55/x
  3. Step 3: Cross multiply
    118,829.69x = 163,982.40 × 65,113.55
  4. Step 4: Simplify right side
    118,829.69x = 10,677,476,201.52
  5. Step 5: Solve for x
    x = 10,677,476,201.52/118,829.69
  6. Step 6: Final answer
    x = 89,855.29

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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.