Home / 124,923.78-187,385.76-31,429.50

Finding the Fourth Proportional to 124,923.78, 187,385.76 and 31,429.50

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Solution

The fourth proportional to 124,923.78, 187,385.76 and 31,429.50 is: 47,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,923.78 : 187,385.76 = 31,429.50 : x
  2. Step 2: Convert to fraction form
    124,923.78/187,385.76 = 31,429.50/x
  3. Step 3: Cross multiply
    124,923.78x = 187,385.76 × 31,429.50
  4. Step 4: Simplify right side
    124,923.78x = 5,889,440,743.92
  5. Step 5: Solve for x
    x = 5,889,440,743.92/124,923.78
  6. Step 6: Final answer
    x = 47,144.27

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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.