Home / 145,071.41-200,202.48-81,413.10

Finding the Fourth Proportional to 145,071.41, 200,202.48 and 81,413.10

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Solution

The fourth proportional to 145,071.41, 200,202.48 and 81,413.10 is: 112,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,071.41 : 200,202.48 = 81,413.10 : x
  2. Step 2: Convert to fraction form
    145,071.41/200,202.48 = 81,413.10/x
  3. Step 3: Cross multiply
    145,071.41x = 200,202.48 × 81,413.10
  4. Step 4: Simplify right side
    145,071.41x = 16,299,104,524.49
  5. Step 5: Solve for x
    x = 16,299,104,524.49/145,071.41
  6. Step 6: Final answer
    x = 112,352.29

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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.