Home / 189,913.85-262,070.52-103,855.85

Finding the Fourth Proportional to 189,913.85, 262,070.52 and 103,855.85

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Solution

The fourth proportional to 189,913.85, 262,070.52 and 103,855.85 is: 143,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,913.85 : 262,070.52 = 103,855.85 : x
  2. Step 2: Convert to fraction form
    189,913.85/262,070.52 = 103,855.85/x
  3. Step 3: Cross multiply
    189,913.85x = 262,070.52 × 103,855.85
  4. Step 4: Simplify right side
    189,913.85x = 27,217,556,880.26
  5. Step 5: Solve for x
    x = 27,217,556,880.26/189,913.85
  6. Step 6: Final answer
    x = 143,315.28

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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.