Home / 103,351.12-142,667.88-69,862.48

Finding the Fourth Proportional to 103,351.12, 142,667.88 and 69,862.48

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Solution

The fourth proportional to 103,351.12, 142,667.88 and 69,862.48 is: 96,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,351.12 : 142,667.88 = 69,862.48 : x
  2. Step 2: Convert to fraction form
    103,351.12/142,667.88 = 69,862.48/x
  3. Step 3: Cross multiply
    103,351.12x = 142,667.88 × 69,862.48
  4. Step 4: Simplify right side
    103,351.12x = 9,967,131,913.14
  5. Step 5: Solve for x
    x = 9,967,131,913.14/103,351.12
  6. Step 6: Final answer
    x = 96,439.52

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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.