Home / 172,901.07-259,364.97-66,336.03

Finding the Fourth Proportional to 172,901.07, 259,364.97 and 66,336.03

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Solution

The fourth proportional to 172,901.07, 259,364.97 and 66,336.03 is: 99,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,901.07 : 259,364.97 = 66,336.03 : x
  2. Step 2: Convert to fraction form
    172,901.07/259,364.97 = 66,336.03/x
  3. Step 3: Cross multiply
    172,901.07x = 259,364.97 × 66,336.03
  4. Step 4: Simplify right side
    172,901.07x = 17,205,242,430.87
  5. Step 5: Solve for x
    x = 17,205,242,430.87/172,901.07
  6. Step 6: Final answer
    x = 99,509.17

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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.