Home / 141,174.59-194,821.05-76,643.78

Finding the Fourth Proportional to 141,174.59, 194,821.05 and 76,643.78

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Solution

The fourth proportional to 141,174.59, 194,821.05 and 76,643.78 is: 105,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,174.59 : 194,821.05 = 76,643.78 : x
  2. Step 2: Convert to fraction form
    141,174.59/194,821.05 = 76,643.78/x
  3. Step 3: Cross multiply
    141,174.59x = 194,821.05 × 76,643.78
  4. Step 4: Simplify right side
    141,174.59x = 14,931,820,721.46
  5. Step 5: Solve for x
    x = 14,931,820,721.46/141,174.59
  6. Step 6: Final answer
    x = 105,768.48

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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.