Home / 127,266.10-190,841.55-57,109.30

Finding the Fourth Proportional to 127,266.10, 190,841.55 and 57,109.30

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Solution

The fourth proportional to 127,266.10, 190,841.55 and 57,109.30 is: 85,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,266.10 : 190,841.55 = 57,109.30 : x
  2. Step 2: Convert to fraction form
    127,266.10/190,841.55 = 57,109.30/x
  3. Step 3: Cross multiply
    127,266.10x = 190,841.55 × 57,109.30
  4. Step 4: Simplify right side
    127,266.10x = 10,898,827,331.42
  5. Step 5: Solve for x
    x = 10,898,827,331.42/127,266.10
  6. Step 6: Final answer
    x = 85,638.10

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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.