Home / 147,800.20-221,786.70-54,315.40

Finding the Fourth Proportional to 147,800.20, 221,786.70 and 54,315.40

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Solution

The fourth proportional to 147,800.20, 221,786.70 and 54,315.40 is: 81,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,800.20 : 221,786.70 = 54,315.40 : x
  2. Step 2: Convert to fraction form
    147,800.20/221,786.70 = 54,315.40/x
  3. Step 3: Cross multiply
    147,800.20x = 221,786.70 × 54,315.40
  4. Step 4: Simplify right side
    147,800.20x = 12,046,433,325.18
  5. Step 5: Solve for x
    x = 12,046,433,325.18/147,800.20
  6. Step 6: Final answer
    x = 81,504.85

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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.