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Finding the Fourth Proportional to 84,648.26, 127,130.41 and 74,520.22

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Solution

The fourth proportional to 84,648.26, 127,130.41 and 74,520.22 is: 111,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,648.26 : 127,130.41 = 74,520.22 : x
  2. Step 2: Convert to fraction form
    84,648.26/127,130.41 = 74,520.22/x
  3. Step 3: Cross multiply
    84,648.26x = 127,130.41 × 74,520.22
  4. Step 4: Simplify right side
    84,648.26x = 9,473,786,135.58
  5. Step 5: Solve for x
    x = 9,473,786,135.58/84,648.26
  6. Step 6: Final answer
    x = 111,919.45

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1.5x scale

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.