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Finding the Fourth Proportional to 112,037.20, 168,007.20 and 45,455.20

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Solution

The fourth proportional to 112,037.20, 168,007.20 and 45,455.20 is: 68,163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,037.20 : 168,007.20 = 45,455.20 : x
  2. Step 2: Convert to fraction form
    112,037.20/168,007.20 = 45,455.20/x
  3. Step 3: Cross multiply
    112,037.20x = 168,007.20 × 45,455.20
  4. Step 4: Simplify right side
    112,037.20x = 7,636,800,877.44
  5. Step 5: Solve for x
    x = 7,636,800,877.44/112,037.20
  6. Step 6: Final answer
    x = 68,163.08

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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.