Home / 187,820.21-259,191.28-101,779.53

Finding the Fourth Proportional to 187,820.21, 259,191.28 and 101,779.53

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Solution

The fourth proportional to 187,820.21, 259,191.28 and 101,779.53 is: 140,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,820.21 : 259,191.28 = 101,779.53 : x
  2. Step 2: Convert to fraction form
    187,820.21/259,191.28 = 101,779.53/x
  3. Step 3: Cross multiply
    187,820.21x = 259,191.28 × 101,779.53
  4. Step 4: Simplify right side
    187,820.21x = 26,380,366,404.05
  5. Step 5: Solve for x
    x = 26,380,366,404.05/187,820.21
  6. Step 6: Final answer
    x = 140,455.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.