Home / 158,386.06-218,588.44-90,413.25

Finding the Fourth Proportional to 158,386.06, 218,588.44 and 90,413.25

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Solution

The fourth proportional to 158,386.06, 218,588.44 and 90,413.25 is: 124,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,386.06 : 218,588.44 = 90,413.25 : x
  2. Step 2: Convert to fraction form
    158,386.06/218,588.44 = 90,413.25/x
  3. Step 3: Cross multiply
    158,386.06x = 218,588.44 × 90,413.25
  4. Step 4: Simplify right side
    158,386.06x = 19,763,289,727.82
  5. Step 5: Solve for x
    x = 19,763,289,727.82/158,386.06
  6. Step 6: Final answer
    x = 124,779.22

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1.5x scale

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.