Home / 145,431.20-200,730.68-88,889.96

Finding the Fourth Proportional to 145,431.20, 200,730.68 and 88,889.96

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Solution

The fourth proportional to 145,431.20, 200,730.68 and 88,889.96 is: 122,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,431.20 : 200,730.68 = 88,889.96 : x
  2. Step 2: Convert to fraction form
    145,431.20/200,730.68 = 88,889.96/x
  3. Step 3: Cross multiply
    145,431.20x = 200,730.68 × 88,889.96
  4. Step 4: Simplify right side
    145,431.20x = 17,842,942,115.97
  5. Step 5: Solve for x
    x = 17,842,942,115.97/145,431.20
  6. Step 6: Final answer
    x = 122,689.92

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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.