Home / 89,923.80-134,885.70-86,084.40

Finding the Fourth Proportional to 89,923.80, 134,885.70 and 86,084.40

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Solution

The fourth proportional to 89,923.80, 134,885.70 and 86,084.40 is: 129,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,923.80 : 134,885.70 = 86,084.40 : x
  2. Step 2: Convert to fraction form
    89,923.80/134,885.70 = 86,084.40/x
  3. Step 3: Cross multiply
    89,923.80x = 134,885.70 × 86,084.40
  4. Step 4: Simplify right side
    89,923.80x = 11,611,554,553.08
  5. Step 5: Solve for x
    x = 11,611,554,553.08/89,923.80
  6. Step 6: Final answer
    x = 129,126.60

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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.