Home / 158,818.68-219,170.20-87,203.34

Finding the Fourth Proportional to 158,818.68, 219,170.20 and 87,203.34

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Solution

The fourth proportional to 158,818.68, 219,170.20 and 87,203.34 is: 120,340.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,818.68 : 219,170.20 = 87,203.34 : x
  2. Step 2: Convert to fraction form
    158,818.68/219,170.20 = 87,203.34/x
  3. Step 3: Cross multiply
    158,818.68x = 219,170.20 × 87,203.34
  4. Step 4: Simplify right side
    158,818.68x = 19,112,373,468.47
  5. Step 5: Solve for x
    x = 19,112,373,468.47/158,818.68
  6. Step 6: Final answer
    x = 120,340.84

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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.