Home / 147,620.20-221,430.30-137,705.80

Finding the Fourth Proportional to 147,620.20, 221,430.30 and 137,705.80

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Solution

The fourth proportional to 147,620.20, 221,430.30 and 137,705.80 is: 206,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.20 : 221,430.30 = 137,705.80 : x
  2. Step 2: Convert to fraction form
    147,620.20/221,430.30 = 137,705.80/x
  3. Step 3: Cross multiply
    147,620.20x = 221,430.30 × 137,705.80
  4. Step 4: Simplify right side
    147,620.20x = 30,492,236,605.74
  5. Step 5: Solve for x
    x = 30,492,236,605.74/147,620.20
  6. Step 6: Final answer
    x = 206,558.70

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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.