Home / 189,217.77-261,158.36-108,700.53

Finding the Fourth Proportional to 189,217.77, 261,158.36 and 108,700.53

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Solution

The fourth proportional to 189,217.77, 261,158.36 and 108,700.53 is: 150,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,217.77 : 261,158.36 = 108,700.53 : x
  2. Step 2: Convert to fraction form
    189,217.77/261,158.36 = 108,700.53/x
  3. Step 3: Cross multiply
    189,217.77x = 261,158.36 × 108,700.53
  4. Step 4: Simplify right side
    189,217.77x = 28,388,051,602.43
  5. Step 5: Solve for x
    x = 28,388,051,602.43/189,217.77
  6. Step 6: Final answer
    x = 150,028.47

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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.