Home / 155,107.48-213,993.82-101,423.92

Finding the Fourth Proportional to 155,107.48, 213,993.82 and 101,423.92

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Solution

The fourth proportional to 155,107.48, 213,993.82 and 101,423.92 is: 139,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,107.48 : 213,993.82 = 101,423.92 : x
  2. Step 2: Convert to fraction form
    155,107.48/213,993.82 = 101,423.92/x
  3. Step 3: Cross multiply
    155,107.48x = 213,993.82 × 101,423.92
  4. Step 4: Simplify right side
    155,107.48x = 21,704,092,080.17
  5. Step 5: Solve for x
    x = 21,704,092,080.17/155,107.48
  6. Step 6: Final answer
    x = 139,929.37

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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.