Home / 147,511.45-221,431.20-91,414.90

Finding the Fourth Proportional to 147,511.45, 221,431.20 and 91,414.90

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Solution

The fourth proportional to 147,511.45, 221,431.20 and 91,414.90 is: 137,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,511.45 : 221,431.20 = 91,414.90 : x
  2. Step 2: Convert to fraction form
    147,511.45/221,431.20 = 91,414.90/x
  3. Step 3: Cross multiply
    147,511.45x = 221,431.20 × 91,414.90
  4. Step 4: Simplify right side
    147,511.45x = 20,242,111,004.88
  5. Step 5: Solve for x
    x = 20,242,111,004.88/147,511.45
  6. Step 6: Final answer
    x = 137,224.00

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1.5x scale

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.