Home / 141,410.81-195,141.92-77,748.11

Finding the Fourth Proportional to 141,410.81, 195,141.92 and 77,748.11

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Solution

The fourth proportional to 141,410.81, 195,141.92 and 77,748.11 is: 107,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,410.81 : 195,141.92 = 77,748.11 : x
  2. Step 2: Convert to fraction form
    141,410.81/195,141.92 = 77,748.11/x
  3. Step 3: Cross multiply
    141,410.81x = 195,141.92 × 77,748.11
  4. Step 4: Simplify right side
    141,410.81x = 15,171,914,097.32
  5. Step 5: Solve for x
    x = 15,171,914,097.32/141,410.81
  6. Step 6: Final answer
    x = 107,289.64

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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.