Home / 127,862.90-191,777.55-39,125.30

Finding the Fourth Proportional to 127,862.90, 191,777.55 and 39,125.30

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Solution

The fourth proportional to 127,862.90, 191,777.55 and 39,125.30 is: 58,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,862.90 : 191,777.55 = 39,125.30 : x
  2. Step 2: Convert to fraction form
    127,862.90/191,777.55 = 39,125.30/x
  3. Step 3: Cross multiply
    127,862.90x = 191,777.55 × 39,125.30
  4. Step 4: Simplify right side
    127,862.90x = 7,503,354,177.02
  5. Step 5: Solve for x
    x = 7,503,354,177.02/127,862.90
  6. Step 6: Final answer
    x = 58,682.81

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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.