Home / 180,905.79-249,665.28-100,359.24

Finding the Fourth Proportional to 180,905.79, 249,665.28 and 100,359.24

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Solution

The fourth proportional to 180,905.79, 249,665.28 and 100,359.24 is: 138,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,905.79 : 249,665.28 = 100,359.24 : x
  2. Step 2: Convert to fraction form
    180,905.79/249,665.28 = 100,359.24/x
  3. Step 3: Cross multiply
    180,905.79x = 249,665.28 × 100,359.24
  4. Step 4: Simplify right side
    180,905.79x = 25,056,217,755.19
  5. Step 5: Solve for x
    x = 25,056,217,755.19/180,905.79
  6. Step 6: Final answer
    x = 138,504.23

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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.