Home / 202,069.60-278,872.65-111,443.29

Finding the Fourth Proportional to 202,069.60, 278,872.65 and 111,443.29

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Solution

The fourth proportional to 202,069.60, 278,872.65 and 111,443.29 is: 153,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,069.60 : 278,872.65 = 111,443.29 : x
  2. Step 2: Convert to fraction form
    202,069.60/278,872.65 = 111,443.29/x
  3. Step 3: Cross multiply
    202,069.60x = 278,872.65 × 111,443.29
  4. Step 4: Simplify right side
    202,069.60x = 31,078,485,607.02
  5. Step 5: Solve for x
    x = 31,078,485,607.02/202,069.60
  6. Step 6: Final answer
    x = 153,800.90

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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.