Home / 112,283.68-168,284.48-56,139.44

Finding the Fourth Proportional to 112,283.68, 168,284.48 and 56,139.44

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Solution

The fourth proportional to 112,283.68, 168,284.48 and 56,139.44 is: 84,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,283.68 : 168,284.48 = 56,139.44 : x
  2. Step 2: Convert to fraction form
    112,283.68/168,284.48 = 56,139.44/x
  3. Step 3: Cross multiply
    112,283.68x = 168,284.48 × 56,139.44
  4. Step 4: Simplify right side
    112,283.68x = 9,447,396,467.89
  5. Step 5: Solve for x
    x = 9,447,396,467.89/112,283.68
  6. Step 6: Final answer
    x = 84,138.64

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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.