Home / 142,533.11-213,873.44-103,413.12

Finding the Fourth Proportional to 142,533.11, 213,873.44 and 103,413.12

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Solution

The fourth proportional to 142,533.11, 213,873.44 and 103,413.12 is: 155,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,533.11 : 213,873.44 = 103,413.12 : x
  2. Step 2: Convert to fraction form
    142,533.11/213,873.44 = 103,413.12/x
  3. Step 3: Cross multiply
    142,533.11x = 213,873.44 × 103,413.12
  4. Step 4: Simplify right side
    142,533.11x = 22,117,319,198.47
  5. Step 5: Solve for x
    x = 22,117,319,198.47/142,533.11
  6. Step 6: Final answer
    x = 155,173.21

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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.