Home / 157,805.35-236,712.78-51,186.40

Finding the Fourth Proportional to 157,805.35, 236,712.78 and 51,186.40

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Solution

The fourth proportional to 157,805.35, 236,712.78 and 51,186.40 is: 76,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,805.35 : 236,712.78 = 51,186.40 : x
  2. Step 2: Convert to fraction form
    157,805.35/236,712.78 = 51,186.40/x
  3. Step 3: Cross multiply
    157,805.35x = 236,712.78 × 51,186.40
  4. Step 4: Simplify right side
    157,805.35x = 12,116,474,450.41
  5. Step 5: Solve for x
    x = 12,116,474,450.41/157,805.35
  6. Step 6: Final answer
    x = 76,781.14

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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.