Home / 127,066.71-190,611.86-90,703.92

Finding the Fourth Proportional to 127,066.71, 190,611.86 and 90,703.92

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Solution

The fourth proportional to 127,066.71, 190,611.86 and 90,703.92 is: 136,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,066.71 : 190,611.86 = 90,703.92 : x
  2. Step 2: Convert to fraction form
    127,066.71/190,611.86 = 90,703.92/x
  3. Step 3: Cross multiply
    127,066.71x = 190,611.86 × 90,703.92
  4. Step 4: Simplify right side
    127,066.71x = 17,289,242,446.97
  5. Step 5: Solve for x
    x = 17,289,242,446.97/127,066.71
  6. Step 6: Final answer
    x = 136,064.30

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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.