Home / 142,164.32-213,279.28-75,668.58

Finding the Fourth Proportional to 142,164.32, 213,279.28 and 75,668.58

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Solution

The fourth proportional to 142,164.32, 213,279.28 and 75,668.58 is: 113,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,164.32 : 213,279.28 = 75,668.58 : x
  2. Step 2: Convert to fraction form
    142,164.32/213,279.28 = 75,668.58/x
  3. Step 3: Cross multiply
    142,164.32x = 213,279.28 × 75,668.58
  4. Step 4: Simplify right side
    142,164.32x = 16,138,540,071.85
  5. Step 5: Solve for x
    x = 16,138,540,071.85/142,164.32
  6. Step 6: Final answer
    x = 113,520.33

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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.