Home / 154,277.10-212,913.18-86,300.28

Finding the Fourth Proportional to 154,277.10, 212,913.18 and 86,300.28

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Solution

The fourth proportional to 154,277.10, 212,913.18 and 86,300.28 is: 119,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,277.10 : 212,913.18 = 86,300.28 : x
  2. Step 2: Convert to fraction form
    154,277.10/212,913.18 = 86,300.28/x
  3. Step 3: Cross multiply
    154,277.10x = 212,913.18 × 86,300.28
  4. Step 4: Simplify right side
    154,277.10x = 18,374,467,049.69
  5. Step 5: Solve for x
    x = 18,374,467,049.69/154,277.10
  6. Step 6: Final answer
    x = 119,100.42

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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.