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Finding the Fourth Proportional to 148,882.93, 205,459.75 and 80,899.91

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Solution

The fourth proportional to 148,882.93, 205,459.75 and 80,899.91 is: 111,642.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,882.93 : 205,459.75 = 80,899.91 : x
  2. Step 2: Convert to fraction form
    148,882.93/205,459.75 = 80,899.91/x
  3. Step 3: Cross multiply
    148,882.93x = 205,459.75 × 80,899.91
  4. Step 4: Simplify right side
    148,882.93x = 16,621,674,887.98
  5. Step 5: Solve for x
    x = 16,621,674,887.98/148,882.93
  6. Step 6: Final answer
    x = 111,642.58

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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.