Home / 147,628.70-221,443.05-137,714.30

Finding the Fourth Proportional to 147,628.70, 221,443.05 and 137,714.30

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Solution

The fourth proportional to 147,628.70, 221,443.05 and 137,714.30 is: 206,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628.70 : 221,443.05 = 137,714.30 : x
  2. Step 2: Convert to fraction form
    147,628.70/221,443.05 = 137,714.30/x
  3. Step 3: Cross multiply
    147,628.70x = 221,443.05 × 137,714.30
  4. Step 4: Simplify right side
    147,628.70x = 30,495,874,620.62
  5. Step 5: Solve for x
    x = 30,495,874,620.62/147,628.70
  6. Step 6: Final answer
    x = 206,571.45

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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.