Home / 141,836.86-195,735.76-78,174.65

Finding the Fourth Proportional to 141,836.86, 195,735.76 and 78,174.65

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Solution

The fourth proportional to 141,836.86, 195,735.76 and 78,174.65 is: 107,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,836.86 : 195,735.76 = 78,174.65 : x
  2. Step 2: Convert to fraction form
    141,836.86/195,735.76 = 78,174.65/x
  3. Step 3: Cross multiply
    141,836.86x = 195,735.76 × 78,174.65
  4. Step 4: Simplify right side
    141,836.86x = 15,301,574,530.48
  5. Step 5: Solve for x
    x = 15,301,574,530.48/141,836.86
  6. Step 6: Final answer
    x = 107,881.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.