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Finding the Fourth Proportional to 172,779.36, 259,062.12 and 67,474.50

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Solution

The fourth proportional to 172,779.36, 259,062.12 and 67,474.50 is: 101,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,779.36 : 259,062.12 = 67,474.50 : x
  2. Step 2: Convert to fraction form
    172,779.36/259,062.12 = 67,474.50/x
  3. Step 3: Cross multiply
    172,779.36x = 259,062.12 × 67,474.50
  4. Step 4: Simplify right side
    172,779.36x = 17,480,087,015.94
  5. Step 5: Solve for x
    x = 17,480,087,015.94/172,779.36
  6. Step 6: Final answer
    x = 101,170.00

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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.