Home / 189,369.36-284,250.96-139,505.76

Finding the Fourth Proportional to 189,369.36, 284,250.96 and 139,505.76

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Solution

The fourth proportional to 189,369.36, 284,250.96 and 139,505.76 is: 209,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,369.36 : 284,250.96 = 139,505.76 : x
  2. Step 2: Convert to fraction form
    189,369.36/284,250.96 = 139,505.76/x
  3. Step 3: Cross multiply
    189,369.36x = 284,250.96 × 139,505.76
  4. Step 4: Simplify right side
    189,369.36x = 39,654,646,205.53
  5. Step 5: Solve for x
    x = 39,654,646,205.53/189,369.36
  6. Step 6: Final answer
    x = 209,403.71

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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.