Home / 104,981.49-144,876.47-57,236.85

Finding the Fourth Proportional to 104,981.49, 144,876.47 and 57,236.85

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Solution

The fourth proportional to 104,981.49, 144,876.47 and 57,236.85 is: 78,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,981.49 : 144,876.47 = 57,236.85 : x
  2. Step 2: Convert to fraction form
    104,981.49/144,876.47 = 57,236.85/x
  3. Step 3: Cross multiply
    104,981.49x = 144,876.47 × 57,236.85
  4. Step 4: Simplify right side
    104,981.49x = 8,292,272,495.74
  5. Step 5: Solve for x
    x = 8,292,272,495.74/104,981.49
  6. Step 6: Final answer
    x = 78,987.95

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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.