Home / 112,390.55-168,668.78-53,226.12

Finding the Fourth Proportional to 112,390.55, 168,668.78 and 53,226.12

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Solution

The fourth proportional to 112,390.55, 168,668.78 and 53,226.12 is: 79,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,390.55 : 168,668.78 = 53,226.12 : x
  2. Step 2: Convert to fraction form
    112,390.55/168,668.78 = 53,226.12/x
  3. Step 3: Cross multiply
    112,390.55x = 168,668.78 × 53,226.12
  4. Step 4: Simplify right side
    112,390.55x = 8,977,584,458.40
  5. Step 5: Solve for x
    x = 8,977,584,458.40/112,390.55
  6. Step 6: Final answer
    x = 79,878.47

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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.