Home / 130,556.25-180,167.85-73,971.45

Finding the Fourth Proportional to 130,556.25, 180,167.85 and 73,971.45

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Solution

The fourth proportional to 130,556.25, 180,167.85 and 73,971.45 is: 102,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,556.25 : 180,167.85 = 73,971.45 : x
  2. Step 2: Convert to fraction form
    130,556.25/180,167.85 = 73,971.45/x
  3. Step 3: Cross multiply
    130,556.25x = 180,167.85 × 73,971.45
  4. Step 4: Simplify right side
    130,556.25x = 13,327,277,107.88
  5. Step 5: Solve for x
    x = 13,327,277,107.88/130,556.25
  6. Step 6: Final answer
    x = 102,080.73

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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.