Home / 106,431.12-159,744.96-53,877.60

Finding the Fourth Proportional to 106,431.12, 159,744.96 and 53,877.60

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Solution

The fourth proportional to 106,431.12, 159,744.96 and 53,877.60 is: 80,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.12 : 159,744.96 = 53,877.60 : x
  2. Step 2: Convert to fraction form
    106,431.12/159,744.96 = 53,877.60/x
  3. Step 3: Cross multiply
    106,431.12x = 159,744.96 × 53,877.60
  4. Step 4: Simplify right side
    106,431.12x = 8,606,675,056.90
  5. Step 5: Solve for x
    x = 8,606,675,056.90/106,431.12
  6. Step 6: Final answer
    x = 80,866.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.