Home / 103,172.26-142,403.04-62,908.22

Finding the Fourth Proportional to 103,172.26, 142,403.04 and 62,908.22

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Solution

The fourth proportional to 103,172.26, 142,403.04 and 62,908.22 is: 86,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,172.26 : 142,403.04 = 62,908.22 : x
  2. Step 2: Convert to fraction form
    103,172.26/142,403.04 = 62,908.22/x
  3. Step 3: Cross multiply
    103,172.26x = 142,403.04 × 62,908.22
  4. Step 4: Simplify right side
    103,172.26x = 8,958,321,768.99
  5. Step 5: Solve for x
    x = 8,958,321,768.99/103,172.26
  6. Step 6: Final answer
    x = 86,828.78

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1.5x scale

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.