Home / 146,413.80-219,620.70-86,538.60

Finding the Fourth Proportional to 146,413.80, 219,620.70 and 86,538.60

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Solution

The fourth proportional to 146,413.80, 219,620.70 and 86,538.60 is: 129,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,413.80 : 219,620.70 = 86,538.60 : x
  2. Step 2: Convert to fraction form
    146,413.80/219,620.70 = 86,538.60/x
  3. Step 3: Cross multiply
    146,413.80x = 219,620.70 × 86,538.60
  4. Step 4: Simplify right side
    146,413.80x = 19,005,667,909.02
  5. Step 5: Solve for x
    x = 19,005,667,909.02/146,413.80
  6. Step 6: Final answer
    x = 129,807.90

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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.