Home / 103,187.85-142,406.60-57,262.56

Finding the Fourth Proportional to 103,187.85, 142,406.60 and 57,262.56

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Solution

The fourth proportional to 103,187.85, 142,406.60 and 57,262.56 is: 79,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,187.85 : 142,406.60 = 57,262.56 : x
  2. Step 2: Convert to fraction form
    103,187.85/142,406.60 = 57,262.56/x
  3. Step 3: Cross multiply
    103,187.85x = 142,406.60 × 57,262.56
  4. Step 4: Simplify right side
    103,187.85x = 8,154,566,190.58
  5. Step 5: Solve for x
    x = 8,154,566,190.58/103,187.85
  6. Step 6: Final answer
    x = 79,026.42

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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.