Home / 185,043.40-277,395-66,685.81

Finding the Fourth Proportional to 185,043.40, 277,395 and 66,685.81

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Solution

The fourth proportional to 185,043.40, 277,395 and 66,685.81 is: 99,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,043.40 : 277,395 = 66,685.81 : x
  2. Step 2: Convert to fraction form
    185,043.40/277,395 = 66,685.81/x
  3. Step 3: Cross multiply
    185,043.40x = 277,395 × 66,685.81
  4. Step 4: Simplify right side
    185,043.40x = 18,498,310,264.95
  5. Step 5: Solve for x
    x = 18,498,310,264.95/185,043.40
  6. Step 6: Final answer
    x = 99,967.41

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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.