Home / 130,485.09-195,413.55-74,187.45

Finding the Fourth Proportional to 130,485.09, 195,413.55 and 74,187.45

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Solution

The fourth proportional to 130,485.09, 195,413.55 and 74,187.45 is: 111,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,485.09 : 195,413.55 = 74,187.45 : x
  2. Step 2: Convert to fraction form
    130,485.09/195,413.55 = 74,187.45/x
  3. Step 3: Cross multiply
    130,485.09x = 195,413.55 × 74,187.45
  4. Step 4: Simplify right side
    130,485.09x = 14,497,232,969.95
  5. Step 5: Solve for x
    x = 14,497,232,969.95/130,485.09
  6. Step 6: Final answer
    x = 111,102.60

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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.