Home / 199,263.64-298,687.86-86,913.69

Finding the Fourth Proportional to 199,263.64, 298,687.86 and 86,913.69

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Solution

The fourth proportional to 199,263.64, 298,687.86 and 86,913.69 is: 130,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,263.64 : 298,687.86 = 86,913.69 : x
  2. Step 2: Convert to fraction form
    199,263.64/298,687.86 = 86,913.69/x
  3. Step 3: Cross multiply
    199,263.64x = 298,687.86 × 86,913.69
  4. Step 4: Simplify right side
    199,263.64x = 25,960,063,636.23
  5. Step 5: Solve for x
    x = 25,960,063,636.23/199,263.64
  6. Step 6: Final answer
    x = 130,279.98

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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.