Home / 104,428.73-144,107.78-56,681.06

Finding the Fourth Proportional to 104,428.73, 144,107.78 and 56,681.06

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Solution

The fourth proportional to 104,428.73, 144,107.78 and 56,681.06 is: 78,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.73 : 144,107.78 = 56,681.06 : x
  2. Step 2: Convert to fraction form
    104,428.73/144,107.78 = 56,681.06/x
  3. Step 3: Cross multiply
    104,428.73x = 144,107.78 × 56,681.06
  4. Step 4: Simplify right side
    104,428.73x = 8,168,180,720.70
  5. Step 5: Solve for x
    x = 8,168,180,720.70/104,428.73
  6. Step 6: Final answer
    x = 78,217.76

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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.