Home / 121,413.15-182,119.73-109,603.35

Finding the Fourth Proportional to 121,413.15, 182,119.73 and 109,603.35

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Solution

The fourth proportional to 121,413.15, 182,119.73 and 109,603.35 is: 164,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,413.15 : 182,119.73 = 109,603.35 : x
  2. Step 2: Convert to fraction form
    121,413.15/182,119.73 = 109,603.35/x
  3. Step 3: Cross multiply
    121,413.15x = 182,119.73 × 109,603.35
  4. Step 4: Simplify right side
    121,413.15x = 19,960,932,509.10
  5. Step 5: Solve for x
    x = 19,960,932,509.10/121,413.15
  6. Step 6: Final answer
    x = 164,405.03

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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.