Home / 158,407.22-218,607.99-90,435.26

Finding the Fourth Proportional to 158,407.22, 218,607.99 and 90,435.26

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Solution

The fourth proportional to 158,407.22, 218,607.99 and 90,435.26 is: 124,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,407.22 : 218,607.99 = 90,435.26 : x
  2. Step 2: Convert to fraction form
    158,407.22/218,607.99 = 90,435.26/x
  3. Step 3: Cross multiply
    158,407.22x = 218,607.99 × 90,435.26
  4. Step 4: Simplify right side
    158,407.22x = 19,769,870,413.73
  5. Step 5: Solve for x
    x = 19,769,870,413.73/158,407.22
  6. Step 6: Final answer
    x = 124,804.10

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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.