Home / 133,028.49-183,579.28-85,281.83

Finding the Fourth Proportional to 133,028.49, 183,579.28 and 85,281.83

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Solution

The fourth proportional to 133,028.49, 183,579.28 and 85,281.83 is: 117,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,028.49 : 183,579.28 = 85,281.83 : x
  2. Step 2: Convert to fraction form
    133,028.49/183,579.28 = 85,281.83/x
  3. Step 3: Cross multiply
    133,028.49x = 183,579.28 × 85,281.83
  4. Step 4: Simplify right side
    133,028.49x = 15,655,976,505.80
  5. Step 5: Solve for x
    x = 15,655,976,505.80/133,028.49
  6. Step 6: Final answer
    x = 117,688.90

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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.