Home / 118,413.36-163,405.62-64,700.28

Finding the Fourth Proportional to 118,413.36, 163,405.62 and 64,700.28

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Solution

The fourth proportional to 118,413.36, 163,405.62 and 64,700.28 is: 89,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,413.36 : 163,405.62 = 64,700.28 : x
  2. Step 2: Convert to fraction form
    118,413.36/163,405.62 = 64,700.28/x
  3. Step 3: Cross multiply
    118,413.36x = 163,405.62 × 64,700.28
  4. Step 4: Simplify right side
    118,413.36x = 10,572,389,367.57
  5. Step 5: Solve for x
    x = 10,572,389,367.57/118,413.36
  6. Step 6: Final answer
    x = 89,283.75

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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.