Home / 142,625.52-213,821.64-53,828.46

Finding the Fourth Proportional to 142,625.52, 213,821.64 and 53,828.46

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Solution

The fourth proportional to 142,625.52, 213,821.64 and 53,828.46 is: 80,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,625.52 : 213,821.64 = 53,828.46 : x
  2. Step 2: Convert to fraction form
    142,625.52/213,821.64 = 53,828.46/x
  3. Step 3: Cross multiply
    142,625.52x = 213,821.64 × 53,828.46
  4. Step 4: Simplify right side
    142,625.52x = 11,509,689,595.87
  5. Step 5: Solve for x
    x = 11,509,689,595.87/142,625.52
  6. Step 6: Final answer
    x = 80,698.67

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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.