Home / 111,413.35-153,760.14-61,122.07

Finding the Fourth Proportional to 111,413.35, 153,760.14 and 61,122.07

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Solution

The fourth proportional to 111,413.35, 153,760.14 and 61,122.07 is: 84,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,413.35 : 153,760.14 = 61,122.07 : x
  2. Step 2: Convert to fraction form
    111,413.35/153,760.14 = 61,122.07/x
  3. Step 3: Cross multiply
    111,413.35x = 153,760.14 × 61,122.07
  4. Step 4: Simplify right side
    111,413.35x = 9,398,138,040.29
  5. Step 5: Solve for x
    x = 9,398,138,040.29/111,413.35
  6. Step 6: Final answer
    x = 84,353.79

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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.