Home / 210,789.38-316,160.78-53,017.89

Finding the Fourth Proportional to 210,789.38, 316,160.78 and 53,017.89

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Solution

The fourth proportional to 210,789.38, 316,160.78 and 53,017.89 is: 79,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,789.38 : 316,160.78 = 53,017.89 : x
  2. Step 2: Convert to fraction form
    210,789.38/316,160.78 = 53,017.89/x
  3. Step 3: Cross multiply
    210,789.38x = 316,160.78 × 53,017.89
  4. Step 4: Simplify right side
    210,789.38x = 16,762,177,191.26
  5. Step 5: Solve for x
    x = 16,762,177,191.26/210,789.38
  6. Step 6: Final answer
    x = 79,520.98

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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.