Home / 185,305.05-255,748.40-117,328.35

Finding the Fourth Proportional to 185,305.05, 255,748.40 and 117,328.35

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Solution

The fourth proportional to 185,305.05, 255,748.40 and 117,328.35 is: 161,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,305.05 : 255,748.40 = 117,328.35 : x
  2. Step 2: Convert to fraction form
    185,305.05/255,748.40 = 117,328.35/x
  3. Step 3: Cross multiply
    185,305.05x = 255,748.40 × 117,328.35
  4. Step 4: Simplify right side
    185,305.05x = 30,006,537,787.14
  5. Step 5: Solve for x
    x = 30,006,537,787.14/185,305.05
  6. Step 6: Final answer
    x = 161,930.49

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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.