Home / 154,916.12-213,783.64-86,932.92

Finding the Fourth Proportional to 154,916.12, 213,783.64 and 86,932.92

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Solution

The fourth proportional to 154,916.12, 213,783.64 and 86,932.92 is: 119,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,916.12 : 213,783.64 = 86,932.92 : x
  2. Step 2: Convert to fraction form
    154,916.12/213,783.64 = 86,932.92/x
  3. Step 3: Cross multiply
    154,916.12x = 213,783.64 × 86,932.92
  4. Step 4: Simplify right side
    154,916.12x = 18,584,836,073.43
  5. Step 5: Solve for x
    x = 18,584,836,073.43/154,916.12
  6. Step 6: Final answer
    x = 119,967.09

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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.