Home / 147,630.56-221,112.90-68,578.43

Finding the Fourth Proportional to 147,630.56, 221,112.90 and 68,578.43

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Solution

The fourth proportional to 147,630.56, 221,112.90 and 68,578.43 is: 102,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,630.56 : 221,112.90 = 68,578.43 : x
  2. Step 2: Convert to fraction form
    147,630.56/221,112.90 = 68,578.43/x
  3. Step 3: Cross multiply
    147,630.56x = 221,112.90 × 68,578.43
  4. Step 4: Simplify right side
    147,630.56x = 15,163,574,429.18
  5. Step 5: Solve for x
    x = 15,163,574,429.18/147,630.56
  6. Step 6: Final answer
    x = 102,712.98

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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.