Home / 103,171.42-142,401.86-62,907.36

Finding the Fourth Proportional to 103,171.42, 142,401.86 and 62,907.36

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Solution

The fourth proportional to 103,171.42, 142,401.86 and 62,907.36 is: 86,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,171.42 : 142,401.86 = 62,907.36 : x
  2. Step 2: Convert to fraction form
    103,171.42/142,401.86 = 62,907.36/x
  3. Step 3: Cross multiply
    103,171.42x = 142,401.86 × 62,907.36
  4. Step 4: Simplify right side
    103,171.42x = 8,958,125,071.69
  5. Step 5: Solve for x
    x = 8,958,125,071.69/103,171.42
  6. Step 6: Final answer
    x = 86,827.58

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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.