Home / 91,157.94-136,752.96-31,172.31

Finding the Fourth Proportional to 91,157.94, 136,752.96 and 31,172.31

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Solution

The fourth proportional to 91,157.94, 136,752.96 and 31,172.31 is: 46,763.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,157.94 : 136,752.96 = 31,172.31 : x
  2. Step 2: Convert to fraction form
    91,157.94/136,752.96 = 31,172.31/x
  3. Step 3: Cross multiply
    91,157.94x = 136,752.96 × 31,172.31
  4. Step 4: Simplify right side
    91,157.94x = 4,262,906,422.64
  5. Step 5: Solve for x
    x = 4,262,906,422.64/91,157.94
  6. Step 6: Final answer
    x = 46,763.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.