Home / 154,241.98-212,864.78-86,265.28

Finding the Fourth Proportional to 154,241.98, 212,864.78 and 86,265.28

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Solution

The fourth proportional to 154,241.98, 212,864.78 and 86,265.28 is: 119,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,241.98 : 212,864.78 = 86,265.28 : x
  2. Step 2: Convert to fraction form
    154,241.98/212,864.78 = 86,265.28/x
  3. Step 3: Cross multiply
    154,241.98x = 212,864.78 × 86,265.28
  4. Step 4: Simplify right side
    154,241.98x = 18,362,838,353.19
  5. Step 5: Solve for x
    x = 18,362,838,353.19/154,241.98
  6. Step 6: Final answer
    x = 119,052.15

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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.