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Finding the Fourth Proportional to 104,731.27, 144,361.11 and 70,728.89

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Solution

The fourth proportional to 104,731.27, 144,361.11 and 70,728.89 is: 97,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,731.27 : 144,361.11 = 70,728.89 : x
  2. Step 2: Convert to fraction form
    104,731.27/144,361.11 = 70,728.89/x
  3. Step 3: Cross multiply
    104,731.27x = 144,361.11 × 70,728.89
  4. Step 4: Simplify right side
    104,731.27x = 10,210,500,347.66
  5. Step 5: Solve for x
    x = 10,210,500,347.66/104,731.27
  6. Step 6: Final answer
    x = 97,492.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.