Home / 103,667.23-155,501.16-28,791.46

Finding the Fourth Proportional to 103,667.23, 155,501.16 and 28,791.46

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Solution

The fourth proportional to 103,667.23, 155,501.16 and 28,791.46 is: 43,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,667.23 : 155,501.16 = 28,791.46 : x
  2. Step 2: Convert to fraction form
    103,667.23/155,501.16 = 28,791.46/x
  3. Step 3: Cross multiply
    103,667.23x = 155,501.16 × 28,791.46
  4. Step 4: Simplify right side
    103,667.23x = 4,477,105,428.09
  5. Step 5: Solve for x
    x = 4,477,105,428.09/103,667.23
  6. Step 6: Final answer
    x = 43,187.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.