Home / 133,310.59-183,943.23-78,871.30

Finding the Fourth Proportional to 133,310.59, 183,943.23 and 78,871.30

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Solution

The fourth proportional to 133,310.59, 183,943.23 and 78,871.30 is: 108,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,310.59 : 183,943.23 = 78,871.30 : x
  2. Step 2: Convert to fraction form
    133,310.59/183,943.23 = 78,871.30/x
  3. Step 3: Cross multiply
    133,310.59x = 183,943.23 × 78,871.30
  4. Step 4: Simplify right side
    133,310.59x = 14,507,841,676.30
  5. Step 5: Solve for x
    x = 14,507,841,676.30/133,310.59
  6. Step 6: Final answer
    x = 108,827.38

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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.