Home / 158,826.82-219,179.49-87,206.21

Finding the Fourth Proportional to 158,826.82, 219,179.49 and 87,206.21

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Solution

The fourth proportional to 158,826.82, 219,179.49 and 87,206.21 is: 120,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,826.82 : 219,179.49 = 87,206.21 : x
  2. Step 2: Convert to fraction form
    158,826.82/219,179.49 = 87,206.21/x
  3. Step 3: Cross multiply
    158,826.82x = 219,179.49 × 87,206.21
  4. Step 4: Simplify right side
    158,826.82x = 19,113,812,632.63
  5. Step 5: Solve for x
    x = 19,113,812,632.63/158,826.82
  6. Step 6: Final answer
    x = 120,343.74

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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.