Home / 103,124.36-154,686.60-28,245.14

Finding the Fourth Proportional to 103,124.36, 154,686.60 and 28,245.14

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Solution

The fourth proportional to 103,124.36, 154,686.60 and 28,245.14 is: 42,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,124.36 : 154,686.60 = 28,245.14 : x
  2. Step 2: Convert to fraction form
    103,124.36/154,686.60 = 28,245.14/x
  3. Step 3: Cross multiply
    103,124.36x = 154,686.60 × 28,245.14
  4. Step 4: Simplify right side
    103,124.36x = 4,369,144,673.12
  5. Step 5: Solve for x
    x = 4,369,144,673.12/103,124.36
  6. Step 6: Final answer
    x = 42,367.73

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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.