Home / 286,619.77-429,933.91-109,136.62

Finding the Fourth Proportional to 286,619.77, 429,933.91 and 109,136.62

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Solution

The fourth proportional to 286,619.77, 429,933.91 and 109,136.62 is: 163,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,619.77 : 429,933.91 = 109,136.62 : x
  2. Step 2: Convert to fraction form
    286,619.77/429,933.91 = 109,136.62/x
  3. Step 3: Cross multiply
    286,619.77x = 429,933.91 × 109,136.62
  4. Step 4: Simplify right side
    286,619.77x = 46,921,533,760.78
  5. Step 5: Solve for x
    x = 46,921,533,760.78/286,619.77
  6. Step 6: Final answer
    x = 163,706.55

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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.