Home / 180,719.06-249,392.88-100,147.91

Finding the Fourth Proportional to 180,719.06, 249,392.88 and 100,147.91

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Solution

The fourth proportional to 180,719.06, 249,392.88 and 100,147.91 is: 138,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,719.06 : 249,392.88 = 100,147.91 : x
  2. Step 2: Convert to fraction form
    180,719.06/249,392.88 = 100,147.91/x
  3. Step 3: Cross multiply
    180,719.06x = 249,392.88 × 100,147.91
  4. Step 4: Simplify right side
    180,719.06x = 24,976,174,453.92
  5. Step 5: Solve for x
    x = 24,976,174,453.92/180,719.06
  6. Step 6: Final answer
    x = 138,204.43

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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.