Home / 113,619.21-156,787.47-62,629.31

Finding the Fourth Proportional to 113,619.21, 156,787.47 and 62,629.31

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Solution

The fourth proportional to 113,619.21, 156,787.47 and 62,629.31 is: 86,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,619.21 : 156,787.47 = 62,629.31 : x
  2. Step 2: Convert to fraction form
    113,619.21/156,787.47 = 62,629.31/x
  3. Step 3: Cross multiply
    113,619.21x = 156,787.47 × 62,629.31
  4. Step 4: Simplify right side
    113,619.21x = 9,819,490,572.78
  5. Step 5: Solve for x
    x = 9,819,490,572.78/113,619.21
  6. Step 6: Final answer
    x = 86,424.56

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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.