Home / 141,076.47-194,687.91-77,420.19

Finding the Fourth Proportional to 141,076.47, 194,687.91 and 77,420.19

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Solution

The fourth proportional to 141,076.47, 194,687.91 and 77,420.19 is: 106,841.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,076.47 : 194,687.91 = 77,420.19 : x
  2. Step 2: Convert to fraction form
    141,076.47/194,687.91 = 77,420.19/x
  3. Step 3: Cross multiply
    141,076.47x = 194,687.91 × 77,420.19
  4. Step 4: Simplify right side
    141,076.47x = 15,072,774,982.90
  5. Step 5: Solve for x
    x = 15,072,774,982.90/141,076.47
  6. Step 6: Final answer
    x = 106,841.17

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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.