Home / 239,413.14-330,392.46-131,987.40

Finding the Fourth Proportional to 239,413.14, 330,392.46 and 131,987.40

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Solution

The fourth proportional to 239,413.14, 330,392.46 and 131,987.40 is: 182,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,413.14 : 330,392.46 = 131,987.40 : x
  2. Step 2: Convert to fraction form
    239,413.14/330,392.46 = 131,987.40/x
  3. Step 3: Cross multiply
    239,413.14x = 330,392.46 × 131,987.40
  4. Step 4: Simplify right side
    239,413.14x = 43,607,641,775.00
  5. Step 5: Solve for x
    x = 43,607,641,775.00/239,413.14
  6. Step 6: Final answer
    x = 182,143.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.