Home / 104,869.78-144,721.56-57,123.52

Finding the Fourth Proportional to 104,869.78, 144,721.56 and 57,123.52

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Solution

The fourth proportional to 104,869.78, 144,721.56 and 57,123.52 is: 78,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,869.78 : 144,721.56 = 57,123.52 : x
  2. Step 2: Convert to fraction form
    104,869.78/144,721.56 = 57,123.52/x
  3. Step 3: Cross multiply
    104,869.78x = 144,721.56 × 57,123.52
  4. Step 4: Simplify right side
    104,869.78x = 8,267,004,927.09
  5. Step 5: Solve for x
    x = 8,267,004,927.09/104,869.78
  6. Step 6: Final answer
    x = 78,831.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.