Home / 130,743.58-195,943.08-51,814.78

Finding the Fourth Proportional to 130,743.58, 195,943.08 and 51,814.78

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Solution

The fourth proportional to 130,743.58, 195,943.08 and 51,814.78 is: 77,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,743.58 : 195,943.08 = 51,814.78 : x
  2. Step 2: Convert to fraction form
    130,743.58/195,943.08 = 51,814.78/x
  3. Step 3: Cross multiply
    130,743.58x = 195,943.08 × 51,814.78
  4. Step 4: Simplify right side
    130,743.58x = 10,152,747,582.72
  5. Step 5: Solve for x
    x = 10,152,747,582.72/130,743.58
  6. Step 6: Final answer
    x = 77,653.89

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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.