Home / 154,814.58-213,689.48-101,107.94

Finding the Fourth Proportional to 154,814.58, 213,689.48 and 101,107.94

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Solution

The fourth proportional to 154,814.58, 213,689.48 and 101,107.94 is: 139,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,814.58 : 213,689.48 = 101,107.94 : x
  2. Step 2: Convert to fraction form
    154,814.58/213,689.48 = 101,107.94/x
  3. Step 3: Cross multiply
    154,814.58x = 213,689.48 × 101,107.94
  4. Step 4: Simplify right side
    154,814.58x = 21,605,701,548.48
  5. Step 5: Solve for x
    x = 21,605,701,548.48/154,814.58
  6. Step 6: Final answer
    x = 139,558.57

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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.