Home / 158,885.32-219,264.38-87,271.96

Finding the Fourth Proportional to 158,885.32, 219,264.38 and 87,271.96

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Solution

The fourth proportional to 158,885.32, 219,264.38 and 87,271.96 is: 120,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,885.32 : 219,264.38 = 87,271.96 : x
  2. Step 2: Convert to fraction form
    158,885.32/219,264.38 = 87,271.96/x
  3. Step 3: Cross multiply
    158,885.32x = 219,264.38 × 87,271.96
  4. Step 4: Simplify right side
    158,885.32x = 19,135,632,200.78
  5. Step 5: Solve for x
    x = 19,135,632,200.78/158,885.32
  6. Step 6: Final answer
    x = 120,436.75

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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.