Home / 195,413.16-292,920.48-77,018.76

Finding the Fourth Proportional to 195,413.16, 292,920.48 and 77,018.76

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Solution

The fourth proportional to 195,413.16, 292,920.48 and 77,018.76 is: 115,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,413.16 : 292,920.48 = 77,018.76 : x
  2. Step 2: Convert to fraction form
    195,413.16/292,920.48 = 77,018.76/x
  3. Step 3: Cross multiply
    195,413.16x = 292,920.48 × 77,018.76
  4. Step 4: Simplify right side
    195,413.16x = 22,560,372,148.20
  5. Step 5: Solve for x
    x = 22,560,372,148.20/195,413.16
  6. Step 6: Final answer
    x = 115,449.61

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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.