Home / 411,668.12-617,415.78-116,111

Finding the Fourth Proportional to 411,668.12, 617,415.78 and 116,111

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Solution

The fourth proportional to 411,668.12, 617,415.78 and 116,111 is: 174,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,668.12 : 617,415.78 = 116,111 : x
  2. Step 2: Convert to fraction form
    411,668.12/617,415.78 = 116,111/x
  3. Step 3: Cross multiply
    411,668.12x = 617,415.78 × 116,111
  4. Step 4: Simplify right side
    411,668.12x = 71,688,763,631.58
  5. Step 5: Solve for x
    x = 71,688,763,631.58/411,668.12
  6. Step 6: Final answer
    x = 174,142.13

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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.