Home / 189,858.56-284,799.59-69,947.78

Finding the Fourth Proportional to 189,858.56, 284,799.59 and 69,947.78

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Solution

The fourth proportional to 189,858.56, 284,799.59 and 69,947.78 is: 104,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,858.56 : 284,799.59 = 69,947.78 : x
  2. Step 2: Convert to fraction form
    189,858.56/284,799.59 = 69,947.78/x
  3. Step 3: Cross multiply
    189,858.56x = 284,799.59 × 69,947.78
  4. Step 4: Simplify right side
    189,858.56x = 19,921,098,715.67
  5. Step 5: Solve for x
    x = 19,921,098,715.67/189,858.56
  6. Step 6: Final answer
    x = 104,926.00

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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.