Home / 127,352.52-191,068.78-52,507.89

Finding the Fourth Proportional to 127,352.52, 191,068.78 and 52,507.89

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Solution

The fourth proportional to 127,352.52, 191,068.78 and 52,507.89 is: 78,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,352.52 : 191,068.78 = 52,507.89 : x
  2. Step 2: Convert to fraction form
    127,352.52/191,068.78 = 52,507.89/x
  3. Step 3: Cross multiply
    127,352.52x = 191,068.78 × 52,507.89
  4. Step 4: Simplify right side
    127,352.52x = 10,032,618,136.27
  5. Step 5: Solve for x
    x = 10,032,618,136.27/127,352.52
  6. Step 6: Final answer
    x = 78,778.33

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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.