Home / 124,914.78-187,372.26-31,420.50

Finding the Fourth Proportional to 124,914.78, 187,372.26 and 31,420.50

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Solution

The fourth proportional to 124,914.78, 187,372.26 and 31,420.50 is: 47,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,914.78 : 187,372.26 = 31,420.50 : x
  2. Step 2: Convert to fraction form
    124,914.78/187,372.26 = 31,420.50/x
  3. Step 3: Cross multiply
    124,914.78x = 187,372.26 × 31,420.50
  4. Step 4: Simplify right side
    124,914.78x = 5,887,330,095.33
  5. Step 5: Solve for x
    x = 5,887,330,095.33/124,914.78
  6. Step 6: Final answer
    x = 47,130.77

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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.