Home / 127,245.51-190,867.05-77,339.39

Finding the Fourth Proportional to 127,245.51, 190,867.05 and 77,339.39

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Solution

The fourth proportional to 127,245.51, 190,867.05 and 77,339.39 is: 116,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,245.51 : 190,867.05 = 77,339.39 : x
  2. Step 2: Convert to fraction form
    127,245.51/190,867.05 = 77,339.39/x
  3. Step 3: Cross multiply
    127,245.51x = 190,867.05 × 77,339.39
  4. Step 4: Simplify right side
    127,245.51x = 14,761,541,218.10
  5. Step 5: Solve for x
    x = 14,761,541,218.10/127,245.51
  6. Step 6: Final answer
    x = 116,008.35

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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.