Home / 110,216.20-165,324.30-72,891.40

Finding the Fourth Proportional to 110,216.20, 165,324.30 and 72,891.40

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Solution

The fourth proportional to 110,216.20, 165,324.30 and 72,891.40 is: 109,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,216.20 : 165,324.30 = 72,891.40 : x
  2. Step 2: Convert to fraction form
    110,216.20/165,324.30 = 72,891.40/x
  3. Step 3: Cross multiply
    110,216.20x = 165,324.30 × 72,891.40
  4. Step 4: Simplify right side
    110,216.20x = 12,050,719,681.02
  5. Step 5: Solve for x
    x = 12,050,719,681.02/110,216.20
  6. Step 6: Final answer
    x = 109,337.10

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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.