Home / 79,146.08-118,720.64-29,200.48

Finding the Fourth Proportional to 79,146.08, 118,720.64 and 29,200.48

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Solution

The fourth proportional to 79,146.08, 118,720.64 and 29,200.48 is: 43,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,146.08 : 118,720.64 = 29,200.48 : x
  2. Step 2: Convert to fraction form
    79,146.08/118,720.64 = 29,200.48/x
  3. Step 3: Cross multiply
    79,146.08x = 118,720.64 × 29,200.48
  4. Step 4: Simplify right side
    79,146.08x = 3,466,699,673.91
  5. Step 5: Solve for x
    x = 3,466,699,673.91/79,146.08
  6. Step 6: Final answer
    x = 43,801.28

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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.