Home / 130,556.32-180,167.28-73,978.48

Finding the Fourth Proportional to 130,556.32, 180,167.28 and 73,978.48

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Solution

The fourth proportional to 130,556.32, 180,167.28 and 73,978.48 is: 102,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,556.32 : 180,167.28 = 73,978.48 : x
  2. Step 2: Convert to fraction form
    130,556.32/180,167.28 = 73,978.48/x
  3. Step 3: Cross multiply
    130,556.32x = 180,167.28 × 73,978.48
  4. Step 4: Simplify right side
    130,556.32x = 13,328,501,520.13
  5. Step 5: Solve for x
    x = 13,328,501,520.13/130,556.32
  6. Step 6: Final answer
    x = 102,090.05

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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.