Home / 123,817.55-185,562.30-109,711.40

Finding the Fourth Proportional to 123,817.55, 185,562.30 and 109,711.40

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Solution

The fourth proportional to 123,817.55, 185,562.30 and 109,711.40 is: 164,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,817.55 : 185,562.30 = 109,711.40 : x
  2. Step 2: Convert to fraction form
    123,817.55/185,562.30 = 109,711.40/x
  3. Step 3: Cross multiply
    123,817.55x = 185,562.30 × 109,711.40
  4. Step 4: Simplify right side
    123,817.55x = 20,358,299,720.22
  5. Step 5: Solve for x
    x = 20,358,299,720.22/123,817.55
  6. Step 6: Final answer
    x = 164,421.76

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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.