Home / 113,405.53-156,509.37-62,428.36

Finding the Fourth Proportional to 113,405.53, 156,509.37 and 62,428.36

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Solution

The fourth proportional to 113,405.53, 156,509.37 and 62,428.36 is: 86,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,405.53 : 156,509.37 = 62,428.36 : x
  2. Step 2: Convert to fraction form
    113,405.53/156,509.37 = 62,428.36/x
  3. Step 3: Cross multiply
    113,405.53x = 156,509.37 × 62,428.36
  4. Step 4: Simplify right side
    113,405.53x = 9,770,623,293.73
  5. Step 5: Solve for x
    x = 9,770,623,293.73/113,405.53
  6. Step 6: Final answer
    x = 86,156.50

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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.