Home / 212,037.75-318,037.95-127,228.59

Finding the Fourth Proportional to 212,037.75, 318,037.95 and 127,228.59

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Solution

The fourth proportional to 212,037.75, 318,037.95 and 127,228.59 is: 190,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,037.75 : 318,037.95 = 127,228.59 : x
  2. Step 2: Convert to fraction form
    212,037.75/318,037.95 = 127,228.59/x
  3. Step 3: Cross multiply
    212,037.75x = 318,037.95 × 127,228.59
  4. Step 4: Simplify right side
    212,037.75x = 40,463,519,944.99
  5. Step 5: Solve for x
    x = 40,463,519,944.99/212,037.75
  6. Step 6: Final answer
    x = 190,831.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.