Home / 124,917.78-187,376.76-31,423.50

Finding the Fourth Proportional to 124,917.78, 187,376.76 and 31,423.50

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Solution

The fourth proportional to 124,917.78, 187,376.76 and 31,423.50 is: 47,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,917.78 : 187,376.76 = 31,423.50 : x
  2. Step 2: Convert to fraction form
    124,917.78/187,376.76 = 31,423.50/x
  3. Step 3: Cross multiply
    124,917.78x = 187,376.76 × 31,423.50
  4. Step 4: Simplify right side
    124,917.78x = 5,888,033,617.86
  5. Step 5: Solve for x
    x = 5,888,033,617.86/124,917.78
  6. Step 6: Final answer
    x = 47,135.27

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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.