Home / 154,339.14-212,996.28-86,352.06

Finding the Fourth Proportional to 154,339.14, 212,996.28 and 86,352.06

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Solution

The fourth proportional to 154,339.14, 212,996.28 and 86,352.06 is: 119,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,339.14 : 212,996.28 = 86,352.06 : x
  2. Step 2: Convert to fraction form
    154,339.14/212,996.28 = 86,352.06/x
  3. Step 3: Cross multiply
    154,339.14x = 212,996.28 × 86,352.06
  4. Step 4: Simplify right side
    154,339.14x = 18,392,667,550.34
  5. Step 5: Solve for x
    x = 18,392,667,550.34/154,339.14
  6. Step 6: Final answer
    x = 119,170.47

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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.