Home / 127,505.90-190,821.45-117,008.30

Finding the Fourth Proportional to 127,505.90, 190,821.45 and 117,008.30

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Solution

The fourth proportional to 127,505.90, 190,821.45 and 117,008.30 is: 175,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,505.90 : 190,821.45 = 117,008.30 : x
  2. Step 2: Convert to fraction form
    127,505.90/190,821.45 = 117,008.30/x
  3. Step 3: Cross multiply
    127,505.90x = 190,821.45 × 117,008.30
  4. Step 4: Simplify right side
    127,505.90x = 22,327,693,468.04
  5. Step 5: Solve for x
    x = 22,327,693,468.04/127,505.90
  6. Step 6: Final answer
    x = 175,111.06

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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.