Home / 109,899.80-164,849.70-43,342.10

Finding the Fourth Proportional to 109,899.80, 164,849.70 and 43,342.10

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Solution

The fourth proportional to 109,899.80, 164,849.70 and 43,342.10 is: 65,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,899.80 : 164,849.70 = 43,342.10 : x
  2. Step 2: Convert to fraction form
    109,899.80/164,849.70 = 43,342.10/x
  3. Step 3: Cross multiply
    109,899.80x = 164,849.70 × 43,342.10
  4. Step 4: Simplify right side
    109,899.80x = 7,144,932,182.37
  5. Step 5: Solve for x
    x = 7,144,932,182.37/109,899.80
  6. Step 6: Final answer
    x = 65,013.15

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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.