Home / 127,884.36-176,416.20-90,180.48

Finding the Fourth Proportional to 127,884.36, 176,416.20 and 90,180.48

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Solution

The fourth proportional to 127,884.36, 176,416.20 and 90,180.48 is: 124,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,884.36 : 176,416.20 = 90,180.48 : x
  2. Step 2: Convert to fraction form
    127,884.36/176,416.20 = 90,180.48/x
  3. Step 3: Cross multiply
    127,884.36x = 176,416.20 × 90,180.48
  4. Step 4: Simplify right side
    127,884.36x = 15,909,297,595.78
  5. Step 5: Solve for x
    x = 15,909,297,595.78/127,884.36
  6. Step 6: Final answer
    x = 124,403.78

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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.