Home / 142,077.20-213,634.20-119,267.60

Finding the Fourth Proportional to 142,077.20, 213,634.20 and 119,267.60

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Solution

The fourth proportional to 142,077.20, 213,634.20 and 119,267.60 is: 179,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,077.20 : 213,634.20 = 119,267.60 : x
  2. Step 2: Convert to fraction form
    142,077.20/213,634.20 = 119,267.60/x
  3. Step 3: Cross multiply
    142,077.20x = 213,634.20 × 119,267.60
  4. Step 4: Simplify right side
    142,077.20x = 25,479,638,311.92
  5. Step 5: Solve for x
    x = 25,479,638,311.92/142,077.20
  6. Step 6: Final answer
    x = 179,336.57

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1.5x scale

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.