Home / 154,112.29-212,673.30-85,201.45

Finding the Fourth Proportional to 154,112.29, 212,673.30 and 85,201.45

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Solution

The fourth proportional to 154,112.29, 212,673.30 and 85,201.45 is: 117,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,112.29 : 212,673.30 = 85,201.45 : x
  2. Step 2: Convert to fraction form
    154,112.29/212,673.30 = 85,201.45/x
  3. Step 3: Cross multiply
    154,112.29x = 212,673.30 × 85,201.45
  4. Step 4: Simplify right side
    154,112.29x = 18,120,073,881.38
  5. Step 5: Solve for x
    x = 18,120,073,881.38/154,112.29
  6. Step 6: Final answer
    x = 117,577.09

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1.5x scale

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.