Home / 102,965.25-142,094.42-57,642.09

Finding the Fourth Proportional to 102,965.25, 142,094.42 and 57,642.09

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Solution

The fourth proportional to 102,965.25, 142,094.42 and 57,642.09 is: 79,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,965.25 : 142,094.42 = 57,642.09 : x
  2. Step 2: Convert to fraction form
    102,965.25/142,094.42 = 57,642.09/x
  3. Step 3: Cross multiply
    102,965.25x = 142,094.42 × 57,642.09
  4. Step 4: Simplify right side
    102,965.25x = 8,190,619,057.93
  5. Step 5: Solve for x
    x = 8,190,619,057.93/102,965.25
  6. Step 6: Final answer
    x = 79,547.41

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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.