Home / 141,171.12-194,814.72-77,507.28

Finding the Fourth Proportional to 141,171.12, 194,814.72 and 77,507.28

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Solution

The fourth proportional to 141,171.12, 194,814.72 and 77,507.28 is: 106,959.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,171.12 : 194,814.72 = 77,507.28 : x
  2. Step 2: Convert to fraction form
    141,171.12/194,814.72 = 77,507.28/x
  3. Step 3: Cross multiply
    141,171.12x = 194,814.72 × 77,507.28
  4. Step 4: Simplify right side
    141,171.12x = 15,099,559,051.16
  5. Step 5: Solve for x
    x = 15,099,559,051.16/141,171.12
  6. Step 6: Final answer
    x = 106,959.26

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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.