Home / 147,620.70-221,431.05-137,706.30

Finding the Fourth Proportional to 147,620.70, 221,431.05 and 137,706.30

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Solution

The fourth proportional to 147,620.70, 221,431.05 and 137,706.30 is: 206,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.70 : 221,431.05 = 137,706.30 : x
  2. Step 2: Convert to fraction form
    147,620.70/221,431.05 = 137,706.30/x
  3. Step 3: Cross multiply
    147,620.70x = 221,431.05 × 137,706.30
  4. Step 4: Simplify right side
    147,620.70x = 30,492,450,600.62
  5. Step 5: Solve for x
    x = 30,492,450,600.62/147,620.70
  6. Step 6: Final answer
    x = 206,559.45

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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.