Home / 148,979.03-205,389.84-101,149.35

Finding the Fourth Proportional to 148,979.03, 205,389.84 and 101,149.35

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Solution

The fourth proportional to 148,979.03, 205,389.84 and 101,149.35 is: 139,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,979.03 : 205,389.84 = 101,149.35 : x
  2. Step 2: Convert to fraction form
    148,979.03/205,389.84 = 101,149.35/x
  3. Step 3: Cross multiply
    148,979.03x = 205,389.84 × 101,149.35
  4. Step 4: Simplify right side
    148,979.03x = 20,775,048,306.86
  5. Step 5: Solve for x
    x = 20,775,048,306.86/148,979.03
  6. Step 6: Final answer
    x = 139,449.48

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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.