Home / 189,945.12-284,909.76-49,700.64

Finding the Fourth Proportional to 189,945.12, 284,909.76 and 49,700.64

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Solution

The fourth proportional to 189,945.12, 284,909.76 and 49,700.64 is: 74,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,945.12 : 284,909.76 = 49,700.64 : x
  2. Step 2: Convert to fraction form
    189,945.12/284,909.76 = 49,700.64/x
  3. Step 3: Cross multiply
    189,945.12x = 284,909.76 × 49,700.64
  4. Step 4: Simplify right side
    189,945.12x = 14,160,197,414.25
  5. Step 5: Solve for x
    x = 14,160,197,414.25/189,945.12
  6. Step 6: Final answer
    x = 74,548.89

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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.