Home / 158,850.05-219,214.59-87,231.57

Finding the Fourth Proportional to 158,850.05, 219,214.59 and 87,231.57

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Solution

The fourth proportional to 158,850.05, 219,214.59 and 87,231.57 is: 120,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.05 : 219,214.59 = 87,231.57 : x
  2. Step 2: Convert to fraction form
    158,850.05/219,214.59 = 87,231.57/x
  3. Step 3: Cross multiply
    158,850.05x = 219,214.59 × 87,231.57
  4. Step 4: Simplify right side
    158,850.05x = 19,122,432,852.61
  5. Step 5: Solve for x
    x = 19,122,432,852.61/158,850.05
  6. Step 6: Final answer
    x = 120,380.40

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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.