Home / 113,709.76-156,919.62-62,721.34

Finding the Fourth Proportional to 113,709.76, 156,919.62 and 62,721.34

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Solution

The fourth proportional to 113,709.76, 156,919.62 and 62,721.34 is: 86,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,709.76 : 156,919.62 = 62,721.34 : x
  2. Step 2: Convert to fraction form
    113,709.76/156,919.62 = 62,721.34/x
  3. Step 3: Cross multiply
    113,709.76x = 156,919.62 × 62,721.34
  4. Step 4: Simplify right side
    113,709.76x = 9,842,208,838.69
  5. Step 5: Solve for x
    x = 9,842,208,838.69/113,709.76
  6. Step 6: Final answer
    x = 86,555.53

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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.