Home / 154,241.54-212,864.18-86,264.84

Finding the Fourth Proportional to 154,241.54, 212,864.18 and 86,264.84

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Solution

The fourth proportional to 154,241.54, 212,864.18 and 86,264.84 is: 119,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,241.54 : 212,864.18 = 86,264.84 : x
  2. Step 2: Convert to fraction form
    154,241.54/212,864.18 = 86,264.84/x
  3. Step 3: Cross multiply
    154,241.54x = 212,864.18 × 86,264.84
  4. Step 4: Simplify right side
    154,241.54x = 18,362,694,530.27
  5. Step 5: Solve for x
    x = 18,362,694,530.27/154,241.54
  6. Step 6: Final answer
    x = 119,051.55

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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.