Home / 125,915.04-189,003.87-55,843.56

Finding the Fourth Proportional to 125,915.04, 189,003.87 and 55,843.56

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Solution

The fourth proportional to 125,915.04, 189,003.87 and 55,843.56 is: 83,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,915.04 : 189,003.87 = 55,843.56 : x
  2. Step 2: Convert to fraction form
    125,915.04/189,003.87 = 55,843.56/x
  3. Step 3: Cross multiply
    125,915.04x = 189,003.87 × 55,843.56
  4. Step 4: Simplify right side
    125,915.04x = 10,554,648,954.58
  5. Step 5: Solve for x
    x = 10,554,648,954.58/125,915.04
  6. Step 6: Final answer
    x = 83,823.58

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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.