Home / 103,172.42-142,403.24-62,908.36

Finding the Fourth Proportional to 103,172.42, 142,403.24 and 62,908.36

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Solution

The fourth proportional to 103,172.42, 142,403.24 and 62,908.36 is: 86,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,172.42 : 142,403.24 = 62,908.36 : x
  2. Step 2: Convert to fraction form
    103,172.42/142,403.24 = 62,908.36/x
  3. Step 3: Cross multiply
    103,172.42x = 142,403.24 × 62,908.36
  4. Step 4: Simplify right side
    103,172.42x = 8,958,354,287.09
  5. Step 5: Solve for x
    x = 8,958,354,287.09/103,172.42
  6. Step 6: Final answer
    x = 86,828.96

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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.