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Finding the Fourth Proportional to 147,985.70, 221,796.30 and 100,600.70

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Solution

The fourth proportional to 147,985.70, 221,796.30 and 100,600.70 is: 150,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,985.70 : 221,796.30 = 100,600.70 : x
  2. Step 2: Convert to fraction form
    147,985.70/221,796.30 = 100,600.70/x
  3. Step 3: Cross multiply
    147,985.70x = 221,796.30 × 100,600.70
  4. Step 4: Simplify right side
    147,985.70x = 22,312,863,037.41
  5. Step 5: Solve for x
    x = 22,312,863,037.41/147,985.70
  6. Step 6: Final answer
    x = 150,777.16

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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.