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Finding the Fourth Proportional to 103,585.60, 145,413.50 and 103,585.60

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Solution

The fourth proportional to 103,585.60, 145,413.50 and 103,585.60 is: 145,413.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.60 : 145,413.50 = 103,585.60 : x
  2. Step 2: Convert to fraction form
    103,585.60/145,413.50 = 103,585.60/x
  3. Step 3: Cross multiply
    103,585.60x = 145,413.50 × 103,585.60
  4. Step 4: Simplify right side
    103,585.60x = 15,062,744,645.60
  5. Step 5: Solve for x
    x = 15,062,744,645.60/103,585.60
  6. Step 6: Final answer
    x = 145,413.50

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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.