Home / 158,719.79-219,035.99-87,106.47

Finding the Fourth Proportional to 158,719.79, 219,035.99 and 87,106.47

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Solution

The fourth proportional to 158,719.79, 219,035.99 and 87,106.47 is: 120,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,719.79 : 219,035.99 = 87,106.47 : x
  2. Step 2: Convert to fraction form
    158,719.79/219,035.99 = 87,106.47/x
  3. Step 3: Cross multiply
    158,719.79x = 219,035.99 × 87,106.47
  4. Step 4: Simplify right side
    158,719.79x = 19,079,451,891.86
  5. Step 5: Solve for x
    x = 19,079,451,891.86/158,719.79
  6. Step 6: Final answer
    x = 120,208.40

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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.