Home / 127,065.21-190,609.61-90,702.42

Finding the Fourth Proportional to 127,065.21, 190,609.61 and 90,702.42

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Solution

The fourth proportional to 127,065.21, 190,609.61 and 90,702.42 is: 136,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,065.21 : 190,609.61 = 90,702.42 : x
  2. Step 2: Convert to fraction form
    127,065.21/190,609.61 = 90,702.42/x
  3. Step 3: Cross multiply
    127,065.21x = 190,609.61 × 90,702.42
  4. Step 4: Simplify right side
    127,065.21x = 17,288,751,733.96
  5. Step 5: Solve for x
    x = 17,288,751,733.96/127,065.21
  6. Step 6: Final answer
    x = 136,062.04

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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.