Home / 142,135.43-213,018.20-57,797.25

Finding the Fourth Proportional to 142,135.43, 213,018.20 and 57,797.25

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Solution

The fourth proportional to 142,135.43, 213,018.20 and 57,797.25 is: 86,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,135.43 : 213,018.20 = 57,797.25 : x
  2. Step 2: Convert to fraction form
    142,135.43/213,018.20 = 57,797.25/x
  3. Step 3: Cross multiply
    142,135.43x = 213,018.20 × 57,797.25
  4. Step 4: Simplify right side
    142,135.43x = 12,311,866,159.95
  5. Step 5: Solve for x
    x = 12,311,866,159.95/142,135.43
  6. Step 6: Final answer
    x = 86,620.67

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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.