Home / 172,106.51-258,071.04-77,255.37

Finding the Fourth Proportional to 172,106.51, 258,071.04 and 77,255.37

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Solution

The fourth proportional to 172,106.51, 258,071.04 and 77,255.37 is: 115,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,106.51 : 258,071.04 = 77,255.37 : x
  2. Step 2: Convert to fraction form
    172,106.51/258,071.04 = 77,255.37/x
  3. Step 3: Cross multiply
    172,106.51x = 258,071.04 × 77,255.37
  4. Step 4: Simplify right side
    172,106.51x = 19,937,373,681.48
  5. Step 5: Solve for x
    x = 19,937,373,681.48/172,106.51
  6. Step 6: Final answer
    x = 115,843.23

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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.