Home / 127,911.90-191,851.05-39,174.30

Finding the Fourth Proportional to 127,911.90, 191,851.05 and 39,174.30

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Solution

The fourth proportional to 127,911.90, 191,851.05 and 39,174.30 is: 58,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,911.90 : 191,851.05 = 39,174.30 : x
  2. Step 2: Convert to fraction form
    127,911.90/191,851.05 = 39,174.30/x
  3. Step 3: Cross multiply
    127,911.90x = 191,851.05 × 39,174.30
  4. Step 4: Simplify right side
    127,911.90x = 7,515,630,588.02
  5. Step 5: Solve for x
    x = 7,515,630,588.02/127,911.90
  6. Step 6: Final answer
    x = 58,756.30

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1.5x scale

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.