Home / 139,961.63-193,127.57-82,603.35

Finding the Fourth Proportional to 139,961.63, 193,127.57 and 82,603.35

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Solution

The fourth proportional to 139,961.63, 193,127.57 and 82,603.35 is: 113,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,961.63 : 193,127.57 = 82,603.35 : x
  2. Step 2: Convert to fraction form
    139,961.63/193,127.57 = 82,603.35/x
  3. Step 3: Cross multiply
    139,961.63x = 193,127.57 × 82,603.35
  4. Step 4: Simplify right side
    139,961.63x = 15,952,984,259.36
  5. Step 5: Solve for x
    x = 15,952,984,259.36/139,961.63
  6. Step 6: Final answer
    x = 113,981.13

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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.