Home / 172,026.56-257,577.33-140,305.75

Finding the Fourth Proportional to 172,026.56, 257,577.33 and 140,305.75

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Solution

The fourth proportional to 172,026.56, 257,577.33 and 140,305.75 is: 210,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,026.56 : 257,577.33 = 140,305.75 : x
  2. Step 2: Convert to fraction form
    172,026.56/257,577.33 = 140,305.75/x
  3. Step 3: Cross multiply
    172,026.56x = 257,577.33 × 140,305.75
  4. Step 4: Simplify right side
    172,026.56x = 36,139,580,468.65
  5. Step 5: Solve for x
    x = 36,139,580,468.65/172,026.56
  6. Step 6: Final answer
    x = 210,081.40

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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.