Home / 127,052.02-190,551.30-81,938.26

Finding the Fourth Proportional to 127,052.02, 190,551.30 and 81,938.26

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Solution

The fourth proportional to 127,052.02, 190,551.30 and 81,938.26 is: 122,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,052.02 : 190,551.30 = 81,938.26 : x
  2. Step 2: Convert to fraction form
    127,052.02/190,551.30 = 81,938.26/x
  3. Step 3: Cross multiply
    127,052.02x = 190,551.30 × 81,938.26
  4. Step 4: Simplify right side
    127,052.02x = 15,613,441,962.74
  5. Step 5: Solve for x
    x = 15,613,441,962.74/127,052.02
  6. Step 6: Final answer
    x = 122,890.15

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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.