Home / 103,481.36-142,816.07-57,545.55

Finding the Fourth Proportional to 103,481.36, 142,816.07 and 57,545.55

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Solution

The fourth proportional to 103,481.36, 142,816.07 and 57,545.55 is: 79,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,481.36 : 142,816.07 = 57,545.55 : x
  2. Step 2: Convert to fraction form
    103,481.36/142,816.07 = 57,545.55/x
  3. Step 3: Cross multiply
    103,481.36x = 142,816.07 × 57,545.55
  4. Step 4: Simplify right side
    103,481.36x = 8,218,429,296.99
  5. Step 5: Solve for x
    x = 8,218,429,296.99/103,481.36
  6. Step 6: Final answer
    x = 79,419.42

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1.5x scale

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.