Home / 103,515.52-142,843.55-58,186.30

Finding the Fourth Proportional to 103,515.52, 142,843.55 and 58,186.30

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Solution

The fourth proportional to 103,515.52, 142,843.55 and 58,186.30 is: 80,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.52 : 142,843.55 = 58,186.30 : x
  2. Step 2: Convert to fraction form
    103,515.52/142,843.55 = 58,186.30/x
  3. Step 3: Cross multiply
    103,515.52x = 142,843.55 × 58,186.30
  4. Step 4: Simplify right side
    103,515.52x = 8,311,537,653.37
  5. Step 5: Solve for x
    x = 8,311,537,653.37/103,515.52
  6. Step 6: Final answer
    x = 80,292.67

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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.