Home / 180,725.67-249,402.05-100,154.56

Finding the Fourth Proportional to 180,725.67, 249,402.05 and 100,154.56

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Solution

The fourth proportional to 180,725.67, 249,402.05 and 100,154.56 is: 138,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,725.67 : 249,402.05 = 100,154.56 : x
  2. Step 2: Convert to fraction form
    180,725.67/249,402.05 = 100,154.56/x
  3. Step 3: Cross multiply
    180,725.67x = 249,402.05 × 100,154.56
  4. Step 4: Simplify right side
    180,725.67x = 24,978,752,580.85
  5. Step 5: Solve for x
    x = 24,978,752,580.85/180,725.67
  6. Step 6: Final answer
    x = 138,213.64

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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.