Home / 102,550.88-153,806.85-43,428.06

Finding the Fourth Proportional to 102,550.88, 153,806.85 and 43,428.06

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Solution

The fourth proportional to 102,550.88, 153,806.85 and 43,428.06 is: 65,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,550.88 : 153,806.85 = 43,428.06 : x
  2. Step 2: Convert to fraction form
    102,550.88/153,806.85 = 43,428.06/x
  3. Step 3: Cross multiply
    102,550.88x = 153,806.85 × 43,428.06
  4. Step 4: Simplify right side
    102,550.88x = 6,679,533,110.21
  5. Step 5: Solve for x
    x = 6,679,533,110.21/102,550.88
  6. Step 6: Final answer
    x = 65,133.84

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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.