Home / 154,299.49-231,401.85-54,436.33

Finding the Fourth Proportional to 154,299.49, 231,401.85 and 54,436.33

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Solution

The fourth proportional to 154,299.49, 231,401.85 and 54,436.33 is: 81,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,299.49 : 231,401.85 = 54,436.33 : x
  2. Step 2: Convert to fraction form
    154,299.49/231,401.85 = 54,436.33/x
  3. Step 3: Cross multiply
    154,299.49x = 231,401.85 × 54,436.33
  4. Step 4: Simplify right side
    154,299.49x = 12,596,666,890.71
  5. Step 5: Solve for x
    x = 12,596,666,890.71/154,299.49
  6. Step 6: Final answer
    x = 81,637.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.