Home / 188,070.12-281,925.36-69,709.68

Finding the Fourth Proportional to 188,070.12, 281,925.36 and 69,709.68

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Solution

The fourth proportional to 188,070.12, 281,925.36 and 69,709.68 is: 104,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,070.12 : 281,925.36 = 69,709.68 : x
  2. Step 2: Convert to fraction form
    188,070.12/281,925.36 = 69,709.68/x
  3. Step 3: Cross multiply
    188,070.12x = 281,925.36 × 69,709.68
  4. Step 4: Simplify right side
    188,070.12x = 19,652,926,629.48
  5. Step 5: Solve for x
    x = 19,652,926,629.48/188,070.12
  6. Step 6: Final answer
    x = 104,497.87

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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.