Home / 108,942.40-163,413.60-101,069.20

Finding the Fourth Proportional to 108,942.40, 163,413.60 and 101,069.20

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Solution

The fourth proportional to 108,942.40, 163,413.60 and 101,069.20 is: 151,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,942.40 : 163,413.60 = 101,069.20 : x
  2. Step 2: Convert to fraction form
    108,942.40/163,413.60 = 101,069.20/x
  3. Step 3: Cross multiply
    108,942.40x = 163,413.60 × 101,069.20
  4. Step 4: Simplify right side
    108,942.40x = 16,516,081,821.12
  5. Step 5: Solve for x
    x = 16,516,081,821.12/108,942.40
  6. Step 6: Final answer
    x = 151,603.80

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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.