Home / 215,037.99-322,355.40-72,783.71

Finding the Fourth Proportional to 215,037.99, 322,355.40 and 72,783.71

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Solution

The fourth proportional to 215,037.99, 322,355.40 and 72,783.71 is: 109,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,037.99 : 322,355.40 = 72,783.71 : x
  2. Step 2: Convert to fraction form
    215,037.99/322,355.40 = 72,783.71/x
  3. Step 3: Cross multiply
    215,037.99x = 322,355.40 × 72,783.71
  4. Step 4: Simplify right side
    215,037.99x = 23,462,223,087.90
  5. Step 5: Solve for x
    x = 23,462,223,087.90/215,037.99
  6. Step 6: Final answer
    x = 109,107.34

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1.5x scale

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.