Home / 129,664.52-178,936.76-70,048.52

Finding the Fourth Proportional to 129,664.52, 178,936.76 and 70,048.52

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Solution

The fourth proportional to 129,664.52, 178,936.76 and 70,048.52 is: 96,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,664.52 : 178,936.76 = 70,048.52 : x
  2. Step 2: Convert to fraction form
    129,664.52/178,936.76 = 70,048.52/x
  3. Step 3: Cross multiply
    129,664.52x = 178,936.76 × 70,048.52
  4. Step 4: Simplify right side
    129,664.52x = 12,534,255,211.60
  5. Step 5: Solve for x
    x = 12,534,255,211.60/129,664.52
  6. Step 6: Final answer
    x = 96,666.81

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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.