Home / 103,637.14-155,438.32-28,764.89

Finding the Fourth Proportional to 103,637.14, 155,438.32 and 28,764.89

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Solution

The fourth proportional to 103,637.14, 155,438.32 and 28,764.89 is: 43,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.14 : 155,438.32 = 28,764.89 : x
  2. Step 2: Convert to fraction form
    103,637.14/155,438.32 = 28,764.89/x
  3. Step 3: Cross multiply
    103,637.14x = 155,438.32 × 28,764.89
  4. Step 4: Simplify right side
    103,637.14x = 4,471,165,883.41
  5. Step 5: Solve for x
    x = 4,471,165,883.41/103,637.14
  6. Step 6: Final answer
    x = 43,142.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.