Home / 148,911.16-205,296.18-101,081.47

Finding the Fourth Proportional to 148,911.16, 205,296.18 and 101,081.47

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Solution

The fourth proportional to 148,911.16, 205,296.18 and 101,081.47 is: 139,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,911.16 : 205,296.18 = 101,081.47 : x
  2. Step 2: Convert to fraction form
    148,911.16/205,296.18 = 101,081.47/x
  3. Step 3: Cross multiply
    148,911.16x = 205,296.18 × 101,081.47
  4. Step 4: Simplify right side
    148,911.16x = 20,751,639,659.78
  5. Step 5: Solve for x
    x = 20,751,639,659.78/148,911.16
  6. Step 6: Final answer
    x = 139,355.84

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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.