Home / 158,271.76-218,413.42-86,651.16

Finding the Fourth Proportional to 158,271.76, 218,413.42 and 86,651.16

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Solution

The fourth proportional to 158,271.76, 218,413.42 and 86,651.16 is: 119,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,271.76 : 218,413.42 = 86,651.16 : x
  2. Step 2: Convert to fraction form
    158,271.76/218,413.42 = 86,651.16/x
  3. Step 3: Cross multiply
    158,271.76x = 218,413.42 × 86,651.16
  4. Step 4: Simplify right side
    158,271.76x = 18,925,776,202.57
  5. Step 5: Solve for x
    x = 18,925,776,202.57/158,271.76
  6. Step 6: Final answer
    x = 119,577.72

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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.