Home / 165,189.90-227,950.83-89,736.78

Finding the Fourth Proportional to 165,189.90, 227,950.83 and 89,736.78

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Solution

The fourth proportional to 165,189.90, 227,950.83 and 89,736.78 is: 123,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,189.90 : 227,950.83 = 89,736.78 : x
  2. Step 2: Convert to fraction form
    165,189.90/227,950.83 = 89,736.78/x
  3. Step 3: Cross multiply
    165,189.90x = 227,950.83 × 89,736.78
  4. Step 4: Simplify right side
    165,189.90x = 20,455,573,482.53
  5. Step 5: Solve for x
    x = 20,455,573,482.53/165,189.90
  6. Step 6: Final answer
    x = 123,830.65

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1.5x scale

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.