Home / 103,619.96-142,984.73-58,294.09

Finding the Fourth Proportional to 103,619.96, 142,984.73 and 58,294.09

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Solution

The fourth proportional to 103,619.96, 142,984.73 and 58,294.09 is: 80,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.96 : 142,984.73 = 58,294.09 : x
  2. Step 2: Convert to fraction form
    103,619.96/142,984.73 = 58,294.09/x
  3. Step 3: Cross multiply
    103,619.96x = 142,984.73 × 58,294.09
  4. Step 4: Simplify right side
    103,619.96x = 8,335,164,507.52
  5. Step 5: Solve for x
    x = 8,335,164,507.52/103,619.96
  6. Step 6: Final answer
    x = 80,439.76

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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.