Home / 104,812.11-144,638.87-57,064.64

Finding the Fourth Proportional to 104,812.11, 144,638.87 and 57,064.64

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Solution

The fourth proportional to 104,812.11, 144,638.87 and 57,064.64 is: 78,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.11 : 144,638.87 = 57,064.64 : x
  2. Step 2: Convert to fraction form
    104,812.11/144,638.87 = 57,064.64/x
  3. Step 3: Cross multiply
    104,812.11x = 144,638.87 × 57,064.64
  4. Step 4: Simplify right side
    104,812.11x = 8,253,764,038.04
  5. Step 5: Solve for x
    x = 8,253,764,038.04/104,812.11
  6. Step 6: Final answer
    x = 78,748.19

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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.