Home / 89,666.10-134,499.15-82,907.70

Finding the Fourth Proportional to 89,666.10, 134,499.15 and 82,907.70

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Solution

The fourth proportional to 89,666.10, 134,499.15 and 82,907.70 is: 124,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,666.10 : 134,499.15 = 82,907.70 : x
  2. Step 2: Convert to fraction form
    89,666.10/134,499.15 = 82,907.70/x
  3. Step 3: Cross multiply
    89,666.10x = 134,499.15 × 82,907.70
  4. Step 4: Simplify right side
    89,666.10x = 11,151,015,178.46
  5. Step 5: Solve for x
    x = 11,151,015,178.46/89,666.10
  6. Step 6: Final answer
    x = 124,361.55

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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.