Home / 147,380.32-221,113.54-47,538.30

Finding the Fourth Proportional to 147,380.32, 221,113.54 and 47,538.30

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Solution

The fourth proportional to 147,380.32, 221,113.54 and 47,538.30 is: 71,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,380.32 : 221,113.54 = 47,538.30 : x
  2. Step 2: Convert to fraction form
    147,380.32/221,113.54 = 47,538.30/x
  3. Step 3: Cross multiply
    147,380.32x = 221,113.54 × 47,538.30
  4. Step 4: Simplify right side
    147,380.32x = 10,511,361,798.58
  5. Step 5: Solve for x
    x = 10,511,361,798.58/147,380.32
  6. Step 6: Final answer
    x = 71,321.34

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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.