Home / 127,057.90-190,556-42,796.30

Finding the Fourth Proportional to 127,057.90, 190,556 and 42,796.30

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Solution

The fourth proportional to 127,057.90, 190,556 and 42,796.30 is: 64,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,057.90 : 190,556 = 42,796.30 : x
  2. Step 2: Convert to fraction form
    127,057.90/190,556 = 42,796.30/x
  3. Step 3: Cross multiply
    127,057.90x = 190,556 × 42,796.30
  4. Step 4: Simplify right side
    127,057.90x = 8,155,091,742.80
  5. Step 5: Solve for x
    x = 8,155,091,742.80/127,057.90
  6. Step 6: Final answer
    x = 64,184.06

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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.