Home / 158,271.41-218,413.95-90,288.26

Finding the Fourth Proportional to 158,271.41, 218,413.95 and 90,288.26

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Solution

The fourth proportional to 158,271.41, 218,413.95 and 90,288.26 is: 124,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,271.41 : 218,413.95 = 90,288.26 : x
  2. Step 2: Convert to fraction form
    158,271.41/218,413.95 = 90,288.26/x
  3. Step 3: Cross multiply
    158,271.41x = 218,413.95 × 90,288.26
  4. Step 4: Simplify right side
    158,271.41x = 19,720,214,413.16
  5. Step 5: Solve for x
    x = 19,720,214,413.16/158,271.41
  6. Step 6: Final answer
    x = 124,597.46

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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.