Home / 139,500.03-192,511.66-77,411.79

Finding the Fourth Proportional to 139,500.03, 192,511.66 and 77,411.79

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Solution

The fourth proportional to 139,500.03, 192,511.66 and 77,411.79 is: 106,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,500.03 : 192,511.66 = 77,411.79 : x
  2. Step 2: Convert to fraction form
    139,500.03/192,511.66 = 77,411.79/x
  3. Step 3: Cross multiply
    139,500.03x = 192,511.66 × 77,411.79
  4. Step 4: Simplify right side
    139,500.03x = 14,902,672,196.47
  5. Step 5: Solve for x
    x = 14,902,672,196.47/139,500.03
  6. Step 6: Final answer
    x = 106,829.17

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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.