Home / 180,707.21-249,383.87-100,134.53

Finding the Fourth Proportional to 180,707.21, 249,383.87 and 100,134.53

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Solution

The fourth proportional to 180,707.21, 249,383.87 and 100,134.53 is: 138,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,707.21 : 249,383.87 = 100,134.53 : x
  2. Step 2: Convert to fraction form
    180,707.21/249,383.87 = 100,134.53/x
  3. Step 3: Cross multiply
    180,707.21x = 249,383.87 × 100,134.53
  4. Step 4: Simplify right side
    180,707.21x = 24,971,936,612.03
  5. Step 5: Solve for x
    x = 24,971,936,612.03/180,707.21
  6. Step 6: Final answer
    x = 138,190.04

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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.