Home / 154,934.32-213,760.60-86,941.28

Finding the Fourth Proportional to 154,934.32, 213,760.60 and 86,941.28

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Solution

The fourth proportional to 154,934.32, 213,760.60 and 86,941.28 is: 119,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,934.32 : 213,760.60 = 86,941.28 : x
  2. Step 2: Convert to fraction form
    154,934.32/213,760.60 = 86,941.28/x
  3. Step 3: Cross multiply
    154,934.32x = 213,760.60 × 86,941.28
  4. Step 4: Simplify right side
    154,934.32x = 18,584,620,177.57
  5. Step 5: Solve for x
    x = 18,584,620,177.57/154,934.32
  6. Step 6: Final answer
    x = 119,951.60

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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.