Home / 154,292.94-212,906.07-86,313.42

Finding the Fourth Proportional to 154,292.94, 212,906.07 and 86,313.42

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Solution

The fourth proportional to 154,292.94, 212,906.07 and 86,313.42 is: 119,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,292.94 : 212,906.07 = 86,313.42 : x
  2. Step 2: Convert to fraction form
    154,292.94/212,906.07 = 86,313.42/x
  3. Step 3: Cross multiply
    154,292.94x = 212,906.07 × 86,313.42
  4. Step 4: Simplify right side
    154,292.94x = 18,376,651,040.46
  5. Step 5: Solve for x
    x = 18,376,651,040.46/154,292.94
  6. Step 6: Final answer
    x = 119,102.35

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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.