Home / 212,413.37-318,816.95-107,306.15

Finding the Fourth Proportional to 212,413.37, 318,816.95 and 107,306.15

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Solution

The fourth proportional to 212,413.37, 318,816.95 and 107,306.15 is: 161,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,413.37 : 318,816.95 = 107,306.15 : x
  2. Step 2: Convert to fraction form
    212,413.37/318,816.95 = 107,306.15/x
  3. Step 3: Cross multiply
    212,413.37x = 318,816.95 × 107,306.15
  4. Step 4: Simplify right side
    212,413.37x = 34,211,017,328.63
  5. Step 5: Solve for x
    x = 34,211,017,328.63/212,413.37
  6. Step 6: Final answer
    x = 161,058.69

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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.