Home / 172,971.53-238,578.05-112,430.51

Finding the Fourth Proportional to 172,971.53, 238,578.05 and 112,430.51

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Solution

The fourth proportional to 172,971.53, 238,578.05 and 112,430.51 is: 155,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,971.53 : 238,578.05 = 112,430.51 : x
  2. Step 2: Convert to fraction form
    172,971.53/238,578.05 = 112,430.51/x
  3. Step 3: Cross multiply
    172,971.53x = 238,578.05 × 112,430.51
  4. Step 4: Simplify right side
    172,971.53x = 26,823,451,274.15
  5. Step 5: Solve for x
    x = 26,823,451,274.15/172,971.53
  6. Step 6: Final answer
    x = 155,074.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.