Home / 118,339.30-162,893.91-103,205.26

Finding the Fourth Proportional to 118,339.30, 162,893.91 and 103,205.26

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Solution

The fourth proportional to 118,339.30, 162,893.91 and 103,205.26 is: 142,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.30 : 162,893.91 = 103,205.26 : x
  2. Step 2: Convert to fraction form
    118,339.30/162,893.91 = 103,205.26/x
  3. Step 3: Cross multiply
    118,339.30x = 162,893.91 × 103,205.26
  4. Step 4: Simplify right side
    118,339.30x = 16,811,508,333.97
  5. Step 5: Solve for x
    x = 16,811,508,333.97/118,339.30
  6. Step 6: Final answer
    x = 142,061.92

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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.