Home / 157,186.36-235,781.97-87,508.54

Finding the Fourth Proportional to 157,186.36, 235,781.97 and 87,508.54

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Solution

The fourth proportional to 157,186.36, 235,781.97 and 87,508.54 is: 131,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,186.36 : 235,781.97 = 87,508.54 : x
  2. Step 2: Convert to fraction form
    157,186.36/235,781.97 = 87,508.54/x
  3. Step 3: Cross multiply
    157,186.36x = 235,781.97 × 87,508.54
  4. Step 4: Simplify right side
    157,186.36x = 20,632,935,953.02
  5. Step 5: Solve for x
    x = 20,632,935,953.02/157,186.36
  6. Step 6: Final answer
    x = 131,264.16

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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.