Home / 190,971.63-285,916.11-158,691.51

Finding the Fourth Proportional to 190,971.63, 285,916.11 and 158,691.51

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Solution

The fourth proportional to 190,971.63, 285,916.11 and 158,691.51 is: 237,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,971.63 : 285,916.11 = 158,691.51 : x
  2. Step 2: Convert to fraction form
    190,971.63/285,916.11 = 158,691.51/x
  3. Step 3: Cross multiply
    190,971.63x = 285,916.11 × 158,691.51
  4. Step 4: Simplify right side
    190,971.63x = 45,372,459,229.23
  5. Step 5: Solve for x
    x = 45,372,459,229.23/190,971.63
  6. Step 6: Final answer
    x = 237,587.43

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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.