Home / 142,413.58-196,532.05-78,752.44

Finding the Fourth Proportional to 142,413.58, 196,532.05 and 78,752.44

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Solution

The fourth proportional to 142,413.58, 196,532.05 and 78,752.44 is: 108,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,413.58 : 196,532.05 = 78,752.44 : x
  2. Step 2: Convert to fraction form
    142,413.58/196,532.05 = 78,752.44/x
  3. Step 3: Cross multiply
    142,413.58x = 196,532.05 × 78,752.44
  4. Step 4: Simplify right side
    142,413.58x = 15,477,377,345.16
  5. Step 5: Solve for x
    x = 15,477,377,345.16/142,413.58
  6. Step 6: Final answer
    x = 108,679.09

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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.