Home / 98,890.07-148,339.20-28,769.38

Finding the Fourth Proportional to 98,890.07, 148,339.20 and 28,769.38

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Solution

The fourth proportional to 98,890.07, 148,339.20 and 28,769.38 is: 43,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.07 : 148,339.20 = 28,769.38 : x
  2. Step 2: Convert to fraction form
    98,890.07/148,339.20 = 28,769.38/x
  3. Step 3: Cross multiply
    98,890.07x = 148,339.20 × 28,769.38
  4. Step 4: Simplify right side
    98,890.07x = 4,267,626,550.73
  5. Step 5: Solve for x
    x = 4,267,626,550.73/98,890.07
  6. Step 6: Final answer
    x = 43,155.26

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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.