Home / 147,622.12-221,468.31-47,782.33

Finding the Fourth Proportional to 147,622.12, 221,468.31 and 47,782.33

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Solution

The fourth proportional to 147,622.12, 221,468.31 and 47,782.33 is: 71,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622.12 : 221,468.31 = 47,782.33 : x
  2. Step 2: Convert to fraction form
    147,622.12/221,468.31 = 47,782.33/x
  3. Step 3: Cross multiply
    147,622.12x = 221,468.31 × 47,782.33
  4. Step 4: Simplify right side
    147,622.12x = 10,582,271,319.29
  5. Step 5: Solve for x
    x = 10,582,271,319.29/147,622.12
  6. Step 6: Final answer
    x = 71,684.86

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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.