Home / 172,558.24-258,492.75-137,079.63

Finding the Fourth Proportional to 172,558.24, 258,492.75 and 137,079.63

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Solution

The fourth proportional to 172,558.24, 258,492.75 and 137,079.63 is: 205,345.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,558.24 : 258,492.75 = 137,079.63 : x
  2. Step 2: Convert to fraction form
    172,558.24/258,492.75 = 137,079.63/x
  3. Step 3: Cross multiply
    172,558.24x = 258,492.75 × 137,079.63
  4. Step 4: Simplify right side
    172,558.24x = 35,434,090,527.68
  5. Step 5: Solve for x
    x = 35,434,090,527.68/172,558.24
  6. Step 6: Final answer
    x = 205,345.69

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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.