Home / 105,004.21-144,905.22-57,256.53

Finding the Fourth Proportional to 105,004.21, 144,905.22 and 57,256.53

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Solution

The fourth proportional to 105,004.21, 144,905.22 and 57,256.53 is: 79,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,004.21 : 144,905.22 = 57,256.53 : x
  2. Step 2: Convert to fraction form
    105,004.21/144,905.22 = 57,256.53/x
  3. Step 3: Cross multiply
    105,004.21x = 144,905.22 × 57,256.53
  4. Step 4: Simplify right side
    105,004.21x = 8,296,769,065.28
  5. Step 5: Solve for x
    x = 8,296,769,065.28/105,004.21
  6. Step 6: Final answer
    x = 79,013.68

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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.