Home / 139,146.90-191,949.18-98,876.94

Finding the Fourth Proportional to 139,146.90, 191,949.18 and 98,876.94

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Solution

The fourth proportional to 139,146.90, 191,949.18 and 98,876.94 is: 136,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,146.90 : 191,949.18 = 98,876.94 : x
  2. Step 2: Convert to fraction form
    139,146.90/191,949.18 = 98,876.94/x
  3. Step 3: Cross multiply
    139,146.90x = 191,949.18 × 98,876.94
  4. Step 4: Simplify right side
    139,146.90x = 18,979,347,553.91
  5. Step 5: Solve for x
    x = 18,979,347,553.91/139,146.90
  6. Step 6: Final answer
    x = 136,397.92

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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.