Home / 199,405.14-298,937.88-87,003.06

Finding the Fourth Proportional to 199,405.14, 298,937.88 and 87,003.06

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Solution

The fourth proportional to 199,405.14, 298,937.88 and 87,003.06 is: 130,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,405.14 : 298,937.88 = 87,003.06 : x
  2. Step 2: Convert to fraction form
    199,405.14/298,937.88 = 87,003.06/x
  3. Step 3: Cross multiply
    199,405.14x = 298,937.88 × 87,003.06
  4. Step 4: Simplify right side
    199,405.14x = 26,008,510,309.91
  5. Step 5: Solve for x
    x = 26,008,510,309.91/199,405.14
  6. Step 6: Final answer
    x = 130,430.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.