Home / 127,918.80-191,898.53-42,532.68

Finding the Fourth Proportional to 127,918.80, 191,898.53 and 42,532.68

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Solution

The fourth proportional to 127,918.80, 191,898.53 and 42,532.68 is: 63,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,918.80 : 191,898.53 = 42,532.68 : x
  2. Step 2: Convert to fraction form
    127,918.80/191,898.53 = 42,532.68/x
  3. Step 3: Cross multiply
    127,918.80x = 191,898.53 × 42,532.68
  4. Step 4: Simplify right side
    127,918.80x = 8,161,958,768.96
  5. Step 5: Solve for x
    x = 8,161,958,768.96/127,918.80
  6. Step 6: Final answer
    x = 63,805.78

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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.