Home / 103,054.25-142,213.56-57,731.41

Finding the Fourth Proportional to 103,054.25, 142,213.56 and 57,731.41

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Solution

The fourth proportional to 103,054.25, 142,213.56 and 57,731.41 is: 79,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,054.25 : 142,213.56 = 57,731.41 : x
  2. Step 2: Convert to fraction form
    103,054.25/142,213.56 = 57,731.41/x
  3. Step 3: Cross multiply
    103,054.25x = 142,213.56 × 57,731.41
  4. Step 4: Simplify right side
    103,054.25x = 8,210,189,301.19
  5. Step 5: Solve for x
    x = 8,210,189,301.19/103,054.25
  6. Step 6: Final answer
    x = 79,668.61

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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.