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Finding the Fourth Proportional to 147,099.42, 220,649.22 and 102,812.64

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Solution

The fourth proportional to 147,099.42, 220,649.22 and 102,812.64 is: 154,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,099.42 : 220,649.22 = 102,812.64 : x
  2. Step 2: Convert to fraction form
    147,099.42/220,649.22 = 102,812.64/x
  3. Step 3: Cross multiply
    147,099.42x = 220,649.22 × 102,812.64
  4. Step 4: Simplify right side
    147,099.42x = 22,685,528,822.14
  5. Step 5: Solve for x
    x = 22,685,528,822.14/147,099.42
  6. Step 6: Final answer
    x = 154,219.02

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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.