Home / 180,717.30-249,391.62-100,145.79

Finding the Fourth Proportional to 180,717.30, 249,391.62 and 100,145.79

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Solution

The fourth proportional to 180,717.30, 249,391.62 and 100,145.79 is: 138,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,717.30 : 249,391.62 = 100,145.79 : x
  2. Step 2: Convert to fraction form
    180,717.30/249,391.62 = 100,145.79/x
  3. Step 3: Cross multiply
    180,717.30x = 249,391.62 × 100,145.79
  4. Step 4: Simplify right side
    180,717.30x = 24,975,520,804.28
  5. Step 5: Solve for x
    x = 24,975,520,804.28/180,717.30
  6. Step 6: Final answer
    x = 138,202.16

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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.