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Finding the Fourth Proportional to 180,579.61, 249,076.11 and 123,892.57

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Solution

The fourth proportional to 180,579.61, 249,076.11 and 123,892.57 is: 170,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,579.61 : 249,076.11 = 123,892.57 : x
  2. Step 2: Convert to fraction form
    180,579.61/249,076.11 = 123,892.57/x
  3. Step 3: Cross multiply
    180,579.61x = 249,076.11 × 123,892.57
  4. Step 4: Simplify right side
    180,579.61x = 30,858,679,393.50
  5. Step 5: Solve for x
    x = 30,858,679,393.50/180,579.61
  6. Step 6: Final answer
    x = 170,886.84

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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.