Home / 124,911.20-187,365-31,416.32

Finding the Fourth Proportional to 124,911.20, 187,365 and 31,416.32

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Solution

The fourth proportional to 124,911.20, 187,365 and 31,416.32 is: 47,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,911.20 : 187,365 = 31,416.32 : x
  2. Step 2: Convert to fraction form
    124,911.20/187,365 = 31,416.32/x
  3. Step 3: Cross multiply
    124,911.20x = 187,365 × 31,416.32
  4. Step 4: Simplify right side
    124,911.20x = 5,886,318,796.80
  5. Step 5: Solve for x
    x = 5,886,318,796.80/124,911.20
  6. Step 6: Final answer
    x = 47,124.03

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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.