Home / 158,771.20-219,106.74-87,157.76

Finding the Fourth Proportional to 158,771.20, 219,106.74 and 87,157.76

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Solution

The fourth proportional to 158,771.20, 219,106.74 and 87,157.76 is: 120,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,771.20 : 219,106.74 = 87,157.76 : x
  2. Step 2: Convert to fraction form
    158,771.20/219,106.74 = 87,157.76/x
  3. Step 3: Cross multiply
    158,771.20x = 219,106.74 × 87,157.76
  4. Step 4: Simplify right side
    158,771.20x = 19,096,852,659.30
  5. Step 5: Solve for x
    x = 19,096,852,659.30/158,771.20
  6. Step 6: Final answer
    x = 120,279.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.