Home / 118,109.77-162,985.30-67,115.68

Finding the Fourth Proportional to 118,109.77, 162,985.30 and 67,115.68

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Solution

The fourth proportional to 118,109.77, 162,985.30 and 67,115.68 is: 92,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,109.77 : 162,985.30 = 67,115.68 : x
  2. Step 2: Convert to fraction form
    118,109.77/162,985.30 = 67,115.68/x
  3. Step 3: Cross multiply
    118,109.77x = 162,985.30 × 67,115.68
  4. Step 4: Simplify right side
    118,109.77x = 10,938,869,239.50
  5. Step 5: Solve for x
    x = 10,938,869,239.50/118,109.77
  6. Step 6: Final answer
    x = 92,616.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.