Home / 103,986.48-155,979.77-29,117.67

Finding the Fourth Proportional to 103,986.48, 155,979.77 and 29,117.67

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Solution

The fourth proportional to 103,986.48, 155,979.77 and 29,117.67 is: 43,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.48 : 155,979.77 = 29,117.67 : x
  2. Step 2: Convert to fraction form
    103,986.48/155,979.77 = 29,117.67/x
  3. Step 3: Cross multiply
    103,986.48x = 155,979.77 × 29,117.67
  4. Step 4: Simplify right side
    103,986.48x = 4,541,767,323.95
  5. Step 5: Solve for x
    x = 4,541,767,323.95/103,986.48
  6. Step 6: Final answer
    x = 43,676.52

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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.