Home / 172,422.04-258,642.78-54,090.76

Finding the Fourth Proportional to 172,422.04, 258,642.78 and 54,090.76

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Solution

The fourth proportional to 172,422.04, 258,642.78 and 54,090.76 is: 81,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,422.04 : 258,642.78 = 54,090.76 : x
  2. Step 2: Convert to fraction form
    172,422.04/258,642.78 = 54,090.76/x
  3. Step 3: Cross multiply
    172,422.04x = 258,642.78 × 54,090.76
  4. Step 4: Simplify right side
    172,422.04x = 13,990,184,538.71
  5. Step 5: Solve for x
    x = 13,990,184,538.71/172,422.04
  6. Step 6: Final answer
    x = 81,139.19

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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.