Home / 180,864.20-249,594-100,287.02

Finding the Fourth Proportional to 180,864.20, 249,594 and 100,287.02

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Solution

The fourth proportional to 180,864.20, 249,594 and 100,287.02 is: 138,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,864.20 : 249,594 = 100,287.02 : x
  2. Step 2: Convert to fraction form
    180,864.20/249,594 = 100,287.02/x
  3. Step 3: Cross multiply
    180,864.20x = 249,594 × 100,287.02
  4. Step 4: Simplify right side
    180,864.20x = 25,031,038,469.88
  5. Step 5: Solve for x
    x = 25,031,038,469.88/180,864.20
  6. Step 6: Final answer
    x = 138,396.87

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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.