Home / 185,172.50-277,284.33-128,167.45

Finding the Fourth Proportional to 185,172.50, 277,284.33 and 128,167.45

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Solution

The fourth proportional to 185,172.50, 277,284.33 and 128,167.45 is: 191,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,172.50 : 277,284.33 = 128,167.45 : x
  2. Step 2: Convert to fraction form
    185,172.50/277,284.33 = 128,167.45/x
  3. Step 3: Cross multiply
    185,172.50x = 277,284.33 × 128,167.45
  4. Step 4: Simplify right side
    185,172.50x = 35,538,824,807.85
  5. Step 5: Solve for x
    x = 35,538,824,807.85/185,172.50
  6. Step 6: Final answer
    x = 191,922.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.