Home / 180,967.10-249,734.91-100,394.64

Finding the Fourth Proportional to 180,967.10, 249,734.91 and 100,394.64

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Solution

The fourth proportional to 180,967.10, 249,734.91 and 100,394.64 is: 138,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,967.10 : 249,734.91 = 100,394.64 : x
  2. Step 2: Convert to fraction form
    180,967.10/249,734.91 = 100,394.64/x
  3. Step 3: Cross multiply
    180,967.10x = 249,734.91 × 100,394.64
  4. Step 4: Simplify right side
    180,967.10x = 25,072,046,384.88
  5. Step 5: Solve for x
    x = 25,072,046,384.88/180,967.10
  6. Step 6: Final answer
    x = 138,544.78

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1.5x scale

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.