Home / 147,345.60-221,018.40-108,076.80

Finding the Fourth Proportional to 147,345.60, 221,018.40 and 108,076.80

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Solution

The fourth proportional to 147,345.60, 221,018.40 and 108,076.80 is: 162,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,345.60 : 221,018.40 = 108,076.80 : x
  2. Step 2: Convert to fraction form
    147,345.60/221,018.40 = 108,076.80/x
  3. Step 3: Cross multiply
    147,345.60x = 221,018.40 × 108,076.80
  4. Step 4: Simplify right side
    147,345.60x = 23,886,961,413.12
  5. Step 5: Solve for x
    x = 23,886,961,413.12/147,345.60
  6. Step 6: Final answer
    x = 162,115.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.