Home / 103,097.58-142,343.22-79,181.52

Finding the Fourth Proportional to 103,097.58, 142,343.22 and 79,181.52

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Solution

The fourth proportional to 103,097.58, 142,343.22 and 79,181.52 is: 109,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,097.58 : 142,343.22 = 79,181.52 : x
  2. Step 2: Convert to fraction form
    103,097.58/142,343.22 = 79,181.52/x
  3. Step 3: Cross multiply
    103,097.58x = 142,343.22 × 79,181.52
  4. Step 4: Simplify right side
    103,097.58x = 11,270,952,521.29
  5. Step 5: Solve for x
    x = 11,270,952,521.29/103,097.58
  6. Step 6: Final answer
    x = 109,323.15

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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.