Home / 122,763.81-169,413.40-69,047.67

Finding the Fourth Proportional to 122,763.81, 169,413.40 and 69,047.67

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Solution

The fourth proportional to 122,763.81, 169,413.40 and 69,047.67 is: 95,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,763.81 : 169,413.40 = 69,047.67 : x
  2. Step 2: Convert to fraction form
    122,763.81/169,413.40 = 69,047.67/x
  3. Step 3: Cross multiply
    122,763.81x = 169,413.40 × 69,047.67
  4. Step 4: Simplify right side
    122,763.81x = 11,697,601,258.39
  5. Step 5: Solve for x
    x = 11,697,601,258.39/122,763.81
  6. Step 6: Final answer
    x = 95,285.42

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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.