Home / 102,426.82-141,371.69-66,554.55

Finding the Fourth Proportional to 102,426.82, 141,371.69 and 66,554.55

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Solution

The fourth proportional to 102,426.82, 141,371.69 and 66,554.55 is: 91,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,426.82 : 141,371.69 = 66,554.55 : x
  2. Step 2: Convert to fraction form
    102,426.82/141,371.69 = 66,554.55/x
  3. Step 3: Cross multiply
    102,426.82x = 141,371.69 × 66,554.55
  4. Step 4: Simplify right side
    102,426.82x = 9,408,929,210.69
  5. Step 5: Solve for x
    x = 9,408,929,210.69/102,426.82
  6. Step 6: Final answer
    x = 91,860.01

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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.