Home / 103,556.55-142,908.87-57,616.86

Finding the Fourth Proportional to 103,556.55, 142,908.87 and 57,616.86

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Solution

The fourth proportional to 103,556.55, 142,908.87 and 57,616.86 is: 79,511.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,556.55 : 142,908.87 = 57,616.86 : x
  2. Step 2: Convert to fraction form
    103,556.55/142,908.87 = 57,616.86/x
  3. Step 3: Cross multiply
    103,556.55x = 142,908.87 × 57,616.86
  4. Step 4: Simplify right side
    103,556.55x = 8,233,960,571.61
  5. Step 5: Solve for x
    x = 8,233,960,571.61/103,556.55
  6. Step 6: Final answer
    x = 79,511.73

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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.