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Finding the Fourth Proportional to 102,930.40, 144,413.60 and 102,930.40

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Solution

The fourth proportional to 102,930.40, 144,413.60 and 102,930.40 is: 144,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930.40 : 144,413.60 = 102,930.40 : x
  2. Step 2: Convert to fraction form
    102,930.40/144,413.60 = 102,930.40/x
  3. Step 3: Cross multiply
    102,930.40x = 144,413.60 × 102,930.40
  4. Step 4: Simplify right side
    102,930.40x = 14,864,549,613.44
  5. Step 5: Solve for x
    x = 14,864,549,613.44/102,930.40
  6. Step 6: Final answer
    x = 144,413.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.