Home / 109,159.80-150,640.29-61,413.18

Finding the Fourth Proportional to 109,159.80, 150,640.29 and 61,413.18

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Solution

The fourth proportional to 109,159.80, 150,640.29 and 61,413.18 is: 84,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,159.80 : 150,640.29 = 61,413.18 : x
  2. Step 2: Convert to fraction form
    109,159.80/150,640.29 = 61,413.18/x
  3. Step 3: Cross multiply
    109,159.80x = 150,640.29 × 61,413.18
  4. Step 4: Simplify right side
    109,159.80x = 9,251,299,245.02
  5. Step 5: Solve for x
    x = 9,251,299,245.02/109,159.80
  6. Step 6: Final answer
    x = 84,750.06

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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.