Home / 127,236.76-190,920.74-52,412.20

Finding the Fourth Proportional to 127,236.76, 190,920.74 and 52,412.20

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Solution

The fourth proportional to 127,236.76, 190,920.74 and 52,412.20 is: 78,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,236.76 : 190,920.74 = 52,412.20 : x
  2. Step 2: Convert to fraction form
    127,236.76/190,920.74 = 52,412.20/x
  3. Step 3: Cross multiply
    127,236.76x = 190,920.74 × 52,412.20
  4. Step 4: Simplify right side
    127,236.76x = 10,006,576,009.03
  5. Step 5: Solve for x
    x = 10,006,576,009.03/127,236.76
  6. Step 6: Final answer
    x = 78,645.32

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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.