Home / 180,927.78-249,676.38-100,353.54

Finding the Fourth Proportional to 180,927.78, 249,676.38 and 100,353.54

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Solution

The fourth proportional to 180,927.78, 249,676.38 and 100,353.54 is: 138,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,927.78 : 249,676.38 = 100,353.54 : x
  2. Step 2: Convert to fraction form
    180,927.78/249,676.38 = 100,353.54/x
  3. Step 3: Cross multiply
    180,927.78x = 249,676.38 × 100,353.54
  4. Step 4: Simplify right side
    180,927.78x = 25,055,908,587.39
  5. Step 5: Solve for x
    x = 25,055,908,587.39/180,927.78
  6. Step 6: Final answer
    x = 138,485.69

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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.