Home / 147,815.36-221,723.04-54,280.64

Finding the Fourth Proportional to 147,815.36, 221,723.04 and 54,280.64

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Solution

The fourth proportional to 147,815.36, 221,723.04 and 54,280.64 is: 81,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,815.36 : 221,723.04 = 54,280.64 : x
  2. Step 2: Convert to fraction form
    147,815.36/221,723.04 = 54,280.64/x
  3. Step 3: Cross multiply
    147,815.36x = 221,723.04 × 54,280.64
  4. Step 4: Simplify right side
    147,815.36x = 12,035,268,513.95
  5. Step 5: Solve for x
    x = 12,035,268,513.95/147,815.36
  6. Step 6: Final answer
    x = 81,420.96

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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.