Home / 142,409.36-213,634.78-52,495.11

Finding the Fourth Proportional to 142,409.36, 213,634.78 and 52,495.11

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Solution

The fourth proportional to 142,409.36, 213,634.78 and 52,495.11 is: 78,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,409.36 : 213,634.78 = 52,495.11 : x
  2. Step 2: Convert to fraction form
    142,409.36/213,634.78 = 52,495.11/x
  3. Step 3: Cross multiply
    142,409.36x = 213,634.78 × 52,495.11
  4. Step 4: Simplify right side
    142,409.36x = 11,214,781,144.69
  5. Step 5: Solve for x
    x = 11,214,781,144.69/142,409.36
  6. Step 6: Final answer
    x = 78,750.31

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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.