Home / 142,425.14-213,571.92-52,445.26

Finding the Fourth Proportional to 142,425.14, 213,571.92 and 52,445.26

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Solution

The fourth proportional to 142,425.14, 213,571.92 and 52,445.26 is: 78,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,425.14 : 213,571.92 = 52,445.26 : x
  2. Step 2: Convert to fraction form
    142,425.14/213,571.92 = 52,445.26/x
  3. Step 3: Cross multiply
    142,425.14x = 213,571.92 × 52,445.26
  4. Step 4: Simplify right side
    142,425.14x = 11,200,834,873.10
  5. Step 5: Solve for x
    x = 11,200,834,873.10/142,425.14
  6. Step 6: Final answer
    x = 78,643.66

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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.