Home / 103,176.42-142,408.76-62,912.36

Finding the Fourth Proportional to 103,176.42, 142,408.76 and 62,912.36

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Solution

The fourth proportional to 103,176.42, 142,408.76 and 62,912.36 is: 86,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,176.42 : 142,408.76 = 62,912.36 : x
  2. Step 2: Convert to fraction form
    103,176.42/142,408.76 = 62,912.36/x
  3. Step 3: Cross multiply
    103,176.42x = 142,408.76 × 62,912.36
  4. Step 4: Simplify right side
    103,176.42x = 8,959,270,149.67
  5. Step 5: Solve for x
    x = 8,959,270,149.67/103,176.42
  6. Step 6: Final answer
    x = 86,834.47

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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.