Home / 121,542.90-182,314.35-51,413.10

Finding the Fourth Proportional to 121,542.90, 182,314.35 and 51,413.10

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Solution

The fourth proportional to 121,542.90, 182,314.35 and 51,413.10 is: 77,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,542.90 : 182,314.35 = 51,413.10 : x
  2. Step 2: Convert to fraction form
    121,542.90/182,314.35 = 51,413.10/x
  3. Step 3: Cross multiply
    121,542.90x = 182,314.35 × 51,413.10
  4. Step 4: Simplify right side
    121,542.90x = 9,373,345,907.99
  5. Step 5: Solve for x
    x = 9,373,345,907.99/121,542.90
  6. Step 6: Final answer
    x = 77,119.65

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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.