Home / 103,516.58-142,835.07-58,188.27

Finding the Fourth Proportional to 103,516.58, 142,835.07 and 58,188.27

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Solution

The fourth proportional to 103,516.58, 142,835.07 and 58,188.27 is: 80,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,516.58 : 142,835.07 = 58,188.27 : x
  2. Step 2: Convert to fraction form
    103,516.58/142,835.07 = 58,188.27/x
  3. Step 3: Cross multiply
    103,516.58x = 142,835.07 × 58,188.27
  4. Step 4: Simplify right side
    103,516.58x = 8,311,326,372.47
  5. Step 5: Solve for x
    x = 8,311,326,372.47/103,516.58
  6. Step 6: Final answer
    x = 80,289.81

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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.