Home / 103,236.93-154,464.03-61,139.61

Finding the Fourth Proportional to 103,236.93, 154,464.03 and 61,139.61

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Solution

The fourth proportional to 103,236.93, 154,464.03 and 61,139.61 is: 91,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,236.93 : 154,464.03 = 61,139.61 : x
  2. Step 2: Convert to fraction form
    103,236.93/154,464.03 = 61,139.61/x
  3. Step 3: Cross multiply
    103,236.93x = 154,464.03 × 61,139.61
  4. Step 4: Simplify right side
    103,236.93x = 9,443,870,553.23
  5. Step 5: Solve for x
    x = 9,443,870,553.23/103,236.93
  6. Step 6: Final answer
    x = 91,477.64

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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.