Home / 113,438.25-156,544.79-63,136.17

Finding the Fourth Proportional to 113,438.25, 156,544.79 and 63,136.17

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Solution

The fourth proportional to 113,438.25, 156,544.79 and 63,136.17 is: 87,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.25 : 156,544.79 = 63,136.17 : x
  2. Step 2: Convert to fraction form
    113,438.25/156,544.79 = 63,136.17/x
  3. Step 3: Cross multiply
    113,438.25x = 156,544.79 × 63,136.17
  4. Step 4: Simplify right side
    113,438.25x = 9,883,638,158.37
  5. Step 5: Solve for x
    x = 9,883,638,158.37/113,438.25
  6. Step 6: Final answer
    x = 87,127.91

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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.