Home / 141,390.71-195,122.91-76,864.29

Finding the Fourth Proportional to 141,390.71, 195,122.91 and 76,864.29

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Solution

The fourth proportional to 141,390.71, 195,122.91 and 76,864.29 is: 106,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,390.71 : 195,122.91 = 76,864.29 : x
  2. Step 2: Convert to fraction form
    141,390.71/195,122.91 = 76,864.29/x
  3. Step 3: Cross multiply
    141,390.71x = 195,122.91 × 76,864.29
  4. Step 4: Simplify right side
    141,390.71x = 14,997,983,939.88
  5. Step 5: Solve for x
    x = 14,997,983,939.88/141,390.71
  6. Step 6: Final answer
    x = 106,074.75

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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.