Home / 127,229.60-190,844.40-89,904.80

Finding the Fourth Proportional to 127,229.60, 190,844.40 and 89,904.80

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Solution

The fourth proportional to 127,229.60, 190,844.40 and 89,904.80 is: 134,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.60 : 190,844.40 = 89,904.80 : x
  2. Step 2: Convert to fraction form
    127,229.60/190,844.40 = 89,904.80/x
  3. Step 3: Cross multiply
    127,229.60x = 190,844.40 × 89,904.80
  4. Step 4: Simplify right side
    127,229.60x = 17,157,827,613.12
  5. Step 5: Solve for x
    x = 17,157,827,613.12/127,229.60
  6. Step 6: Final answer
    x = 134,857.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.