Home / 154,241.91-212,864.69-86,265.21

Finding the Fourth Proportional to 154,241.91, 212,864.69 and 86,265.21

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Solution

The fourth proportional to 154,241.91, 212,864.69 and 86,265.21 is: 119,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,241.91 : 212,864.69 = 86,265.21 : x
  2. Step 2: Convert to fraction form
    154,241.91/212,864.69 = 86,265.21/x
  3. Step 3: Cross multiply
    154,241.91x = 212,864.69 × 86,265.21
  4. Step 4: Simplify right side
    154,241.91x = 18,362,817,184.43
  5. Step 5: Solve for x
    x = 18,362,817,184.43/154,241.91
  6. Step 6: Final answer
    x = 119,052.06

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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.