Home / 141,953.72-195,905.10-78,291.64

Finding the Fourth Proportional to 141,953.72, 195,905.10 and 78,291.64

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Solution

The fourth proportional to 141,953.72, 195,905.10 and 78,291.64 is: 108,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,953.72 : 195,905.10 = 78,291.64 : x
  2. Step 2: Convert to fraction form
    141,953.72/195,905.10 = 78,291.64/x
  3. Step 3: Cross multiply
    141,953.72x = 195,905.10 × 78,291.64
  4. Step 4: Simplify right side
    141,953.72x = 15,337,731,563.36
  5. Step 5: Solve for x
    x = 15,337,731,563.36/141,953.72
  6. Step 6: Final answer
    x = 108,047.41

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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.