Home / 158,724.45-219,047.72-87,103.89

Finding the Fourth Proportional to 158,724.45, 219,047.72 and 87,103.89

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Solution

The fourth proportional to 158,724.45, 219,047.72 and 87,103.89 is: 120,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,724.45 : 219,047.72 = 87,103.89 : x
  2. Step 2: Convert to fraction form
    158,724.45/219,047.72 = 87,103.89/x
  3. Step 3: Cross multiply
    158,724.45x = 219,047.72 × 87,103.89
  4. Step 4: Simplify right side
    158,724.45x = 19,079,908,072.11
  5. Step 5: Solve for x
    x = 19,079,908,072.11/158,724.45
  6. Step 6: Final answer
    x = 120,207.74

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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.