Home / 129,603.48-178,747.08-108,826.80

Finding the Fourth Proportional to 129,603.48, 178,747.08 and 108,826.80

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Solution

The fourth proportional to 129,603.48, 178,747.08 and 108,826.80 is: 150,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,603.48 : 178,747.08 = 108,826.80 : x
  2. Step 2: Convert to fraction form
    129,603.48/178,747.08 = 108,826.80/x
  3. Step 3: Cross multiply
    129,603.48x = 178,747.08 × 108,826.80
  4. Step 4: Simplify right side
    129,603.48x = 19,452,472,725.74
  5. Step 5: Solve for x
    x = 19,452,472,725.74/129,603.48
  6. Step 6: Final answer
    x = 150,092.21

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1.5x scale

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.