Home / 147,734.40-221,450.40-72,739.20

Finding the Fourth Proportional to 147,734.40, 221,450.40 and 72,739.20

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Solution

The fourth proportional to 147,734.40, 221,450.40 and 72,739.20 is: 109,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,734.40 : 221,450.40 = 72,739.20 : x
  2. Step 2: Convert to fraction form
    147,734.40/221,450.40 = 72,739.20/x
  3. Step 3: Cross multiply
    147,734.40x = 221,450.40 × 72,739.20
  4. Step 4: Simplify right side
    147,734.40x = 16,108,124,935.68
  5. Step 5: Solve for x
    x = 16,108,124,935.68/147,734.40
  6. Step 6: Final answer
    x = 109,034.35

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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.