Home / 158,623.70-218,899.20-87,004.01

Finding the Fourth Proportional to 158,623.70, 218,899.20 and 87,004.01

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Solution

The fourth proportional to 158,623.70, 218,899.20 and 87,004.01 is: 120,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,623.70 : 218,899.20 = 87,004.01 : x
  2. Step 2: Convert to fraction form
    158,623.70/218,899.20 = 87,004.01/x
  3. Step 3: Cross multiply
    158,623.70x = 218,899.20 × 87,004.01
  4. Step 4: Simplify right side
    158,623.70x = 19,045,107,091.30
  5. Step 5: Solve for x
    x = 19,045,107,091.30/158,623.70
  6. Step 6: Final answer
    x = 120,064.70

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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.