Home / 103,161.54-142,369.74-57,842.49

Finding the Fourth Proportional to 103,161.54, 142,369.74 and 57,842.49

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Solution

The fourth proportional to 103,161.54, 142,369.74 and 57,842.49 is: 79,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,161.54 : 142,369.74 = 57,842.49 : x
  2. Step 2: Convert to fraction form
    103,161.54/142,369.74 = 57,842.49/x
  3. Step 3: Cross multiply
    103,161.54x = 142,369.74 × 57,842.49
  4. Step 4: Simplify right side
    103,161.54x = 8,235,020,262.25
  5. Step 5: Solve for x
    x = 8,235,020,262.25/103,161.54
  6. Step 6: Final answer
    x = 79,826.46

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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.