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Finding the Fourth Proportional to 108,015.60, 162,023.40 and 103,641.60

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Solution

The fourth proportional to 108,015.60, 162,023.40 and 103,641.60 is: 155,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,015.60 : 162,023.40 = 103,641.60 : x
  2. Step 2: Convert to fraction form
    108,015.60/162,023.40 = 103,641.60/x
  3. Step 3: Cross multiply
    108,015.60x = 162,023.40 × 103,641.60
  4. Step 4: Simplify right side
    108,015.60x = 16,792,364,413.44
  5. Step 5: Solve for x
    x = 16,792,364,413.44/108,015.60
  6. Step 6: Final answer
    x = 155,462.40

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1.5x scale

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.