Home / 133,499.40-183,912.30-93,139.80

Finding the Fourth Proportional to 133,499.40, 183,912.30 and 93,139.80

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Solution

The fourth proportional to 133,499.40, 183,912.30 and 93,139.80 is: 128,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,499.40 : 183,912.30 = 93,139.80 : x
  2. Step 2: Convert to fraction form
    133,499.40/183,912.30 = 93,139.80/x
  3. Step 3: Cross multiply
    133,499.40x = 183,912.30 × 93,139.80
  4. Step 4: Simplify right side
    133,499.40x = 17,129,554,839.54
  5. Step 5: Solve for x
    x = 17,129,554,839.54/133,499.40
  6. Step 6: Final answer
    x = 128,311.85

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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.