Home / 130,513.34-180,195.09-100,244.54

Finding the Fourth Proportional to 130,513.34, 180,195.09 and 100,244.54

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Solution

The fourth proportional to 130,513.34, 180,195.09 and 100,244.54 is: 138,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,513.34 : 180,195.09 = 100,244.54 : x
  2. Step 2: Convert to fraction form
    130,513.34/180,195.09 = 100,244.54/x
  3. Step 3: Cross multiply
    130,513.34x = 180,195.09 × 100,244.54
  4. Step 4: Simplify right side
    130,513.34x = 18,063,573,907.31
  5. Step 5: Solve for x
    x = 18,063,573,907.31/130,513.34
  6. Step 6: Final answer
    x = 138,404.04

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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.