Home / 157,384.13-217,190.11-85,764.13

Finding the Fourth Proportional to 157,384.13, 217,190.11 and 85,764.13

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Solution

The fourth proportional to 157,384.13, 217,190.11 and 85,764.13 is: 118,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,384.13 : 217,190.11 = 85,764.13 : x
  2. Step 2: Convert to fraction form
    157,384.13/217,190.11 = 85,764.13/x
  3. Step 3: Cross multiply
    157,384.13x = 217,190.11 × 85,764.13
  4. Step 4: Simplify right side
    157,384.13x = 18,627,120,828.75
  5. Step 5: Solve for x
    x = 18,627,120,828.75/157,384.13
  6. Step 6: Final answer
    x = 118,354.51

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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.