Home / 172,406.04-258,609.36-54,086.70

Finding the Fourth Proportional to 172,406.04, 258,609.36 and 54,086.70

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Solution

The fourth proportional to 172,406.04, 258,609.36 and 54,086.70 is: 81,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,406.04 : 258,609.36 = 54,086.70 : x
  2. Step 2: Convert to fraction form
    172,406.04/258,609.36 = 54,086.70/x
  3. Step 3: Cross multiply
    172,406.04x = 258,609.36 × 54,086.70
  4. Step 4: Simplify right side
    172,406.04x = 13,987,326,871.51
  5. Step 5: Solve for x
    x = 13,987,326,871.51/172,406.04
  6. Step 6: Final answer
    x = 81,130.14

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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.